21418181736

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1\times {\mathrm{1249}}^1$

素因数の和:2359

約数の個数: 128

約数和(自身を含む): 61900800000

約数和(自身を除く): 40482618264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 103, 168, 206, 309, 412, 618, 721, 824, 991, 1236, 1249, 1442, 1982, 2163, 2472, 2498, 2884, 2973, 3747, 3964, 4326, 4996, 5768, 5946, 6937, 7494, 7928, 8652, 8743, 9992, 11892, 13874, 14988, 17304, 17486, 20811, 23784, 26229, 27748, 29976, 34972, 41622, 52458, 55496, 69944, 83244, 102073, 104916, 128647, 166488, 204146, 209832, 257294, 306219, 385941, 408292, 514588, 612438, 714511, 771882, 816584, 900529, 1029176, 1224876, 1237759, 1429022, 1543764, 1801058, 2143533, 2449752, 2475518, 2701587, 2858044, 3087528, 3602116, 3713277, 4287066, 4951036, 5403174, 5716088, 7204232, 7426554, 8574132, 8664313, 9902072, 10806348, 14853108, 17148264, 17328626, 21612696, 25992939, 29706216, 34657252, 51985878, 69314504, 103971756, 127489177, 207943512, 254978354, 382467531, 509956708, 764935062, 892424239, 1019913416, 1529870124, 1784848478, 2677272717, 3059740248, 3569696956, 5354545434, 7139393912, 10709090868, 21418181736]

約数ペア:

[(1, 21418181736), (2, 10709090868), (3, 7139393912), (4, 5354545434), (6, 3569696956), (7, 3059740248), (8, 2677272717), (12, 1784848478), (14, 1529870124), (21, 1019913416), (24, 892424239), (28, 764935062), (42, 509956708), (56, 382467531), (84, 254978354), (103, 207943512), (168, 127489177), (206, 103971756), (309, 69314504), (412, 51985878), (618, 34657252), (721, 29706216), (824, 25992939), (991, 21612696), (1236, 17328626), (1249, 17148264), (1442, 14853108), (1982, 10806348), (2163, 9902072), (2472, 8664313), (2498, 8574132), (2884, 7426554), (2973, 7204232), (3747, 5716088), (3964, 5403174), (4326, 4951036), (4996, 4287066), (5768, 3713277), (5946, 3602116), (6937, 3087528), (7494, 2858044), (7928, 2701587), (8652, 2475518), (8743, 2449752), (9992, 2143533), (11892, 1801058), (13874, 1543764), (14988, 1429022), (17304, 1237759), (17486, 1224876), (20811, 1029176), (23784, 900529), (26229, 816584), (27748, 771882), (29976, 714511), (34972, 612438), (41622, 514588), (52458, 408292), (55496, 385941), (69944, 306219), (83244, 257294), (102073, 209832), (104916, 204146), (128647, 166488)]