18978632

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 36979320

約数和(自身を除く): 18000688

約数列:

[1, 2, 4, 8, 37, 74, 97, 148, 194, 296, 388, 661, 776, 1322, 2644, 3589, 5288, 7178, 14356, 24457, 28712, 48914, 64117, 97828, 128234, 195656, 256468, 512936, 2372329, 4744658, 9489316, 18978632]

約数ペア:

[(1, 18978632), (2, 9489316), (4, 4744658), (8, 2372329), (37, 512936), (74, 256468), (97, 195656), (148, 128234), (194, 97828), (296, 64117), (388, 48914), (661, 28712), (776, 24457), (1322, 14356), (2644, 7178), (3589, 5288)]