21017724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1013}}^1$

素因数の和:1059

約数の個数: 96

約数和(自身を含む): 63598080

約数和(自身を除く): 42580356

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 1013, 1092, 1482, 1596, 1729, 2026, 2964, 3039, 3458, 4052, 5187, 6078, 6916, 7091, 10374, 12156, 13169, 14182, 19247, 20748, 21273, 26338, 28364, 38494, 39507, 42546, 52676, 57741, 76988, 79014, 85092, 92183, 115482, 134729, 158028, 184366, 230964, 250211, 269458, 276549, 368732, 404187, 500422, 538916, 553098, 750633, 808374, 1000844, 1106196, 1501266, 1616748, 1751477, 3002532, 3502954, 5254431, 7005908, 10508862, 21017724]

約数ペア:

[(1, 21017724), (2, 10508862), (3, 7005908), (4, 5254431), (6, 3502954), (7, 3002532), (12, 1751477), (13, 1616748), (14, 1501266), (19, 1106196), (21, 1000844), (26, 808374), (28, 750633), (38, 553098), (39, 538916), (42, 500422), (52, 404187), (57, 368732), (76, 276549), (78, 269458), (84, 250211), (91, 230964), (114, 184366), (133, 158028), (156, 134729), (182, 115482), (228, 92183), (247, 85092), (266, 79014), (273, 76988), (364, 57741), (399, 52676), (494, 42546), (532, 39507), (546, 38494), (741, 28364), (798, 26338), (988, 21273), (1013, 20748), (1092, 19247), (1482, 14182), (1596, 13169), (1729, 12156), (2026, 10374), (2964, 7091), (3039, 6916), (3458, 6078), (4052, 5187)]