19883344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{877}}^1$

素因数の和:1007

約数の個数: 40

約数和(自身を含む): 41915720

約数和(自身を除く): 22032376

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 877, 1417, 1744, 1754, 2834, 3508, 5668, 7016, 11336, 11401, 14032, 22672, 22802, 45604, 91208, 95593, 182416, 191186, 382372, 764744, 1242709, 1529488, 2485418, 4970836, 9941672, 19883344]

約数ペア:

[(1, 19883344), (2, 9941672), (4, 4970836), (8, 2485418), (13, 1529488), (16, 1242709), (26, 764744), (52, 382372), (104, 191186), (109, 182416), (208, 95593), (218, 91208), (436, 45604), (872, 22802), (877, 22672), (1417, 14032), (1744, 11401), (1754, 11336), (2834, 7016), (3508, 5668)]