19685988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{409}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 57308160

約数和(自身を除く): 37622172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 191, 252, 382, 409, 573, 764, 818, 1146, 1227, 1337, 1636, 1719, 2292, 2454, 2674, 2863, 3438, 3681, 4011, 4908, 5348, 5726, 6876, 7362, 8022, 8589, 11452, 12033, 14724, 16044, 17178, 24066, 25767, 34356, 48132, 51534, 78119, 103068, 156238, 234357, 312476, 468714, 546833, 703071, 937428, 1093666, 1406142, 1640499, 2187332, 2812284, 3280998, 4921497, 6561996, 9842994, 19685988]

約数ペア:

[(1, 19685988), (2, 9842994), (3, 6561996), (4, 4921497), (6, 3280998), (7, 2812284), (9, 2187332), (12, 1640499), (14, 1406142), (18, 1093666), (21, 937428), (28, 703071), (36, 546833), (42, 468714), (63, 312476), (84, 234357), (126, 156238), (191, 103068), (252, 78119), (382, 51534), (409, 48132), (573, 34356), (764, 25767), (818, 24066), (1146, 17178), (1227, 16044), (1337, 14724), (1636, 12033), (1719, 11452), (2292, 8589), (2454, 8022), (2674, 7362), (2863, 6876), (3438, 5726), (3681, 5348), (4011, 4908)]