19691152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2309}}^1$

素因数の和:2371

約数の個数: 40

約数和(自身を含む): 42106680

約数和(自身を除く): 22415528

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2309, 4264, 4618, 8528, 9236, 18472, 30017, 36944, 60034, 94669, 120068, 189338, 240136, 378676, 480272, 757352, 1230697, 1514704, 2461394, 4922788, 9845576, 19691152]

約数ペア:

[(1, 19691152), (2, 9845576), (4, 4922788), (8, 2461394), (13, 1514704), (16, 1230697), (26, 757352), (41, 480272), (52, 378676), (82, 240136), (104, 189338), (164, 120068), (208, 94669), (328, 60034), (533, 36944), (656, 30017), (1066, 18472), (2132, 9236), (2309, 8528), (4264, 4618)]