21809060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:573

約数の個数: 96

約数和(自身を含む): 58931712

約数和(自身を除く): 37122652

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 521, 598, 644, 805, 910, 1042, 1196, 1495, 1610, 1820, 2084, 2093, 2605, 2990, 3220, 3647, 4186, 5210, 5980, 6773, 7294, 8372, 10420, 10465, 11983, 13546, 14588, 18235, 20930, 23966, 27092, 33865, 36470, 41860, 47411, 47932, 59915, 67730, 72940, 83881, 94822, 119830, 135460, 155779, 167762, 189644, 237055, 239660, 311558, 335524, 419405, 474110, 623116, 778895, 838810, 948220, 1090453, 1557790, 1677620, 2180906, 3115580, 4361812, 5452265, 10904530, 21809060]

約数ペア:

[(1, 21809060), (2, 10904530), (4, 5452265), (5, 4361812), (7, 3115580), (10, 2180906), (13, 1677620), (14, 1557790), (20, 1090453), (23, 948220), (26, 838810), (28, 778895), (35, 623116), (46, 474110), (52, 419405), (65, 335524), (70, 311558), (91, 239660), (92, 237055), (115, 189644), (130, 167762), (140, 155779), (161, 135460), (182, 119830), (230, 94822), (260, 83881), (299, 72940), (322, 67730), (364, 59915), (455, 47932), (460, 47411), (521, 41860), (598, 36470), (644, 33865), (805, 27092), (910, 23966), (1042, 20930), (1196, 18235), (1495, 14588), (1610, 13546), (1820, 11983), (2084, 10465), (2093, 10420), (2605, 8372), (2990, 7294), (3220, 6773), (3647, 5980), (4186, 5210)]