21829704

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 63329280

約数和(自身を除く): 41499576

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 37, 39, 52, 61, 62, 74, 78, 93, 104, 111, 122, 124, 148, 156, 183, 186, 222, 244, 248, 296, 312, 366, 372, 403, 444, 481, 488, 732, 744, 793, 806, 888, 962, 1147, 1209, 1443, 1464, 1586, 1612, 1891, 1924, 2257, 2294, 2379, 2418, 2886, 3172, 3224, 3441, 3782, 3848, 4514, 4588, 4758, 4836, 5673, 5772, 6344, 6771, 6882, 7564, 9028, 9176, 9516, 9672, 11346, 11544, 13542, 13764, 14911, 15128, 18056, 19032, 22692, 24583, 27084, 27528, 29341, 29822, 44733, 45384, 49166, 54168, 58682, 59644, 69967, 73749, 88023, 89466, 98332, 117364, 119288, 139934, 147498, 176046, 178932, 196664, 209901, 234728, 279868, 294996, 352092, 357864, 419802, 559736, 589992, 704184, 839604, 909571, 1679208, 1819142, 2728713, 3638284, 5457426, 7276568, 10914852, 21829704]

約数ペア:

[(1, 21829704), (2, 10914852), (3, 7276568), (4, 5457426), (6, 3638284), (8, 2728713), (12, 1819142), (13, 1679208), (24, 909571), (26, 839604), (31, 704184), (37, 589992), (39, 559736), (52, 419802), (61, 357864), (62, 352092), (74, 294996), (78, 279868), (93, 234728), (104, 209901), (111, 196664), (122, 178932), (124, 176046), (148, 147498), (156, 139934), (183, 119288), (186, 117364), (222, 98332), (244, 89466), (248, 88023), (296, 73749), (312, 69967), (366, 59644), (372, 58682), (403, 54168), (444, 49166), (481, 45384), (488, 44733), (732, 29822), (744, 29341), (793, 27528), (806, 27084), (888, 24583), (962, 22692), (1147, 19032), (1209, 18056), (1443, 15128), (1464, 14911), (1586, 13764), (1612, 13542), (1891, 11544), (1924, 11346), (2257, 9672), (2294, 9516), (2379, 9176), (2418, 9028), (2886, 7564), (3172, 6882), (3224, 6771), (3441, 6344), (3782, 5772), (3848, 5673), (4514, 4836), (4588, 4758)]