19487312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4931}}^1$

素因数の和:4971

約数の個数: 40

約数和(自身を含む): 42809760

約数和(自身を除く): 23322448

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4931, 9862, 19724, 39448, 64103, 78896, 93689, 128206, 187378, 256412, 374756, 512824, 749512, 1025648, 1217957, 1499024, 2435914, 4871828, 9743656, 19487312]

約数ペア:

[(1, 19487312), (2, 9743656), (4, 4871828), (8, 2435914), (13, 1499024), (16, 1217957), (19, 1025648), (26, 749512), (38, 512824), (52, 374756), (76, 256412), (104, 187378), (152, 128206), (208, 93689), (247, 78896), (304, 64103), (494, 39448), (988, 19724), (1976, 9862), (3952, 4931)]