21162076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 22274660

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 442, 481, 629, 647, 884, 962, 1258, 1294, 1924, 2516, 2588, 8177, 8411, 10999, 16354, 16822, 21998, 23939, 32708, 33644, 43996, 47878, 95756, 142987, 285974, 311207, 406963, 571948, 622414, 813926, 1244828, 1627852, 5290519, 10581038, 21162076]

約数ペア:

[(1, 21162076), (2, 10581038), (4, 5290519), (13, 1627852), (17, 1244828), (26, 813926), (34, 622414), (37, 571948), (52, 406963), (68, 311207), (74, 285974), (148, 142987), (221, 95756), (442, 47878), (481, 43996), (629, 33644), (647, 32708), (884, 23939), (962, 21998), (1258, 16822), (1294, 16354), (1924, 10999), (2516, 8411), (2588, 8177)]