217431344

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:646

約数の個数: 60

約数和(自身を含む): 459649152

約数和(自身を除く): 242217808

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 191, 208, 338, 382, 421, 676, 764, 842, 1352, 1528, 1684, 2483, 2704, 3056, 3368, 4966, 5473, 6736, 9932, 10946, 19864, 21892, 32279, 39728, 43784, 64558, 71149, 80411, 87568, 129116, 142298, 160822, 258232, 284596, 321644, 516464, 569192, 643288, 1045343, 1138384, 1286576, 2090686, 4181372, 8362744, 13589459, 16725488, 27178918, 54357836, 108715672, 217431344]

約数ペア:

[(1, 217431344), (2, 108715672), (4, 54357836), (8, 27178918), (13, 16725488), (16, 13589459), (26, 8362744), (52, 4181372), (104, 2090686), (169, 1286576), (191, 1138384), (208, 1045343), (338, 643288), (382, 569192), (421, 516464), (676, 321644), (764, 284596), (842, 258232), (1352, 160822), (1528, 142298), (1684, 129116), (2483, 87568), (2704, 80411), (3056, 71149), (3368, 64558), (4966, 43784), (5473, 39728), (6736, 32279), (9932, 21892), (10946, 19864)]