19554704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2293}}^1$

素因数の和:2355

約数の個数: 40

約数和(自身を含む): 41815032

約数和(自身を除く): 22260328

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2293, 4264, 4586, 8528, 9172, 18344, 29809, 36688, 59618, 94013, 119236, 188026, 238472, 376052, 476944, 752104, 1222169, 1504208, 2444338, 4888676, 9777352, 19554704]

約数ペア:

[(1, 19554704), (2, 9777352), (4, 4888676), (8, 2444338), (13, 1504208), (16, 1222169), (26, 752104), (41, 476944), (52, 376052), (82, 238472), (104, 188026), (164, 119236), (208, 94013), (328, 59618), (533, 36688), (656, 29809), (1066, 18344), (2132, 9172), (2293, 8528), (4264, 4586)]