20448876

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 56306880

約数和(自身を除く): 35858004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 83, 84, 98, 147, 166, 196, 249, 294, 332, 419, 498, 581, 588, 838, 996, 1162, 1257, 1676, 1743, 2324, 2514, 2933, 3486, 4067, 5028, 5866, 6972, 8134, 8799, 11732, 12201, 16268, 17598, 20531, 24402, 34777, 35196, 41062, 48804, 61593, 69554, 82124, 104331, 123186, 139108, 208662, 243439, 246372, 417324, 486878, 730317, 973756, 1460634, 1704073, 2921268, 3408146, 5112219, 6816292, 10224438, 20448876]

約数ペア:

[(1, 20448876), (2, 10224438), (3, 6816292), (4, 5112219), (6, 3408146), (7, 2921268), (12, 1704073), (14, 1460634), (21, 973756), (28, 730317), (42, 486878), (49, 417324), (83, 246372), (84, 243439), (98, 208662), (147, 139108), (166, 123186), (196, 104331), (249, 82124), (294, 69554), (332, 61593), (419, 48804), (498, 41062), (581, 35196), (588, 34777), (838, 24402), (996, 20531), (1162, 17598), (1257, 16268), (1676, 12201), (1743, 11732), (2324, 8799), (2514, 8134), (2933, 6972), (3486, 5866), (4067, 5028)]