21099472

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1303

約数の個数: 40

約数和(自身を含む): 43468200

約数和(自身を除く): 22368728

約数列:

[1, 2, 4, 8, 16, 29, 37, 58, 74, 116, 148, 232, 296, 464, 592, 1073, 1229, 2146, 2458, 4292, 4916, 8584, 9832, 17168, 19664, 35641, 45473, 71282, 90946, 142564, 181892, 285128, 363784, 570256, 727568, 1318717, 2637434, 5274868, 10549736, 21099472]

約数ペア:

[(1, 21099472), (2, 10549736), (4, 5274868), (8, 2637434), (16, 1318717), (29, 727568), (37, 570256), (58, 363784), (74, 285128), (116, 181892), (148, 142564), (232, 90946), (296, 71282), (464, 45473), (592, 35641), (1073, 19664), (1229, 17168), (2146, 9832), (2458, 8584), (4292, 4916)]