21350490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5351}}^1$

素因数の和:5387

約数の個数: 64

約数和(自身を含む): 61655040

約数和(自身を除く): 40304550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 5351, 10702, 16053, 26755, 32106, 37457, 53510, 74914, 80265, 101669, 112371, 160530, 187285, 203338, 224742, 305007, 374570, 508345, 561855, 610014, 711683, 1016690, 1123710, 1423366, 1525035, 2135049, 3050070, 3558415, 4270098, 7116830, 10675245, 21350490]

約数ペア:

[(1, 21350490), (2, 10675245), (3, 7116830), (5, 4270098), (6, 3558415), (7, 3050070), (10, 2135049), (14, 1525035), (15, 1423366), (19, 1123710), (21, 1016690), (30, 711683), (35, 610014), (38, 561855), (42, 508345), (57, 374570), (70, 305007), (95, 224742), (105, 203338), (114, 187285), (133, 160530), (190, 112371), (210, 101669), (266, 80265), (285, 74914), (399, 53510), (570, 37457), (665, 32106), (798, 26755), (1330, 16053), (1995, 10702), (3990, 5351)]