19638944

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2777}}^1$

素因数の和:2817

約数の個数: 48

約数和(自身を含む): 44103528

約数和(自身を除く): 24464584

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2777, 3536, 5554, 7072, 11108, 22216, 36101, 44432, 47209, 72202, 88864, 94418, 144404, 188836, 288808, 377672, 577616, 613717, 755344, 1155232, 1227434, 1510688, 2454868, 4909736, 9819472, 19638944]

約数ペア:

[(1, 19638944), (2, 9819472), (4, 4909736), (8, 2454868), (13, 1510688), (16, 1227434), (17, 1155232), (26, 755344), (32, 613717), (34, 577616), (52, 377672), (68, 288808), (104, 188836), (136, 144404), (208, 94418), (221, 88864), (272, 72202), (416, 47209), (442, 44432), (544, 36101), (884, 22216), (1768, 11108), (2777, 7072), (3536, 5554)]