19413996

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 53300016

約数和(自身を除く): 33886020

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 137, 147, 196, 241, 274, 294, 411, 482, 548, 588, 723, 822, 959, 964, 1446, 1644, 1687, 1918, 2877, 2892, 3374, 3836, 5061, 5754, 6713, 6748, 10122, 11508, 11809, 13426, 20139, 20244, 23618, 26852, 33017, 35427, 40278, 47236, 66034, 70854, 80556, 99051, 132068, 141708, 198102, 231119, 396204, 462238, 693357, 924476, 1386714, 1617833, 2773428, 3235666, 4853499, 6471332, 9706998, 19413996]

約数ペア:

[(1, 19413996), (2, 9706998), (3, 6471332), (4, 4853499), (6, 3235666), (7, 2773428), (12, 1617833), (14, 1386714), (21, 924476), (28, 693357), (42, 462238), (49, 396204), (84, 231119), (98, 198102), (137, 141708), (147, 132068), (196, 99051), (241, 80556), (274, 70854), (294, 66034), (411, 47236), (482, 40278), (548, 35427), (588, 33017), (723, 26852), (822, 23618), (959, 20244), (964, 20139), (1446, 13426), (1644, 11809), (1687, 11508), (1918, 10122), (2877, 6748), (2892, 6713), (3374, 5754), (3836, 5061)]