19716876

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 52276224

約数和(自身を除く): 32559348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 47, 86, 94, 129, 141, 172, 188, 258, 271, 282, 387, 423, 516, 542, 564, 774, 813, 846, 1084, 1548, 1626, 1692, 2021, 2439, 3252, 4042, 4878, 6063, 8084, 9756, 11653, 12126, 12737, 18189, 23306, 24252, 25474, 34959, 36378, 38211, 46612, 50948, 69918, 72756, 76422, 104877, 114633, 139836, 152844, 209754, 229266, 419508, 458532, 547691, 1095382, 1643073, 2190764, 3286146, 4929219, 6572292, 9858438, 19716876]

約数ペア:

[(1, 19716876), (2, 9858438), (3, 6572292), (4, 4929219), (6, 3286146), (9, 2190764), (12, 1643073), (18, 1095382), (36, 547691), (43, 458532), (47, 419508), (86, 229266), (94, 209754), (129, 152844), (141, 139836), (172, 114633), (188, 104877), (258, 76422), (271, 72756), (282, 69918), (387, 50948), (423, 46612), (516, 38211), (542, 36378), (564, 34959), (774, 25474), (813, 24252), (846, 23306), (1084, 18189), (1548, 12737), (1626, 12126), (1692, 11653), (2021, 9756), (2439, 8084), (3252, 6063), (4042, 4878)]