21770190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:858

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 41915250

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 30, 39, 45, 46, 65, 69, 78, 90, 115, 117, 130, 138, 195, 207, 230, 234, 299, 345, 390, 414, 585, 598, 690, 809, 897, 1035, 1170, 1495, 1618, 1794, 2070, 2427, 2691, 2990, 4045, 4485, 4854, 5382, 7281, 8090, 8970, 10517, 12135, 13455, 14562, 18607, 21034, 24270, 26910, 31551, 36405, 37214, 52585, 55821, 63102, 72810, 93035, 94653, 105170, 111642, 157755, 167463, 186070, 189306, 241891, 279105, 315510, 334926, 473265, 483782, 558210, 725673, 837315, 946530, 1209455, 1451346, 1674630, 2177019, 2418910, 3628365, 4354038, 7256730, 10885095, 21770190]

約数ペア:

[(1, 21770190), (2, 10885095), (3, 7256730), (5, 4354038), (6, 3628365), (9, 2418910), (10, 2177019), (13, 1674630), (15, 1451346), (18, 1209455), (23, 946530), (26, 837315), (30, 725673), (39, 558210), (45, 483782), (46, 473265), (65, 334926), (69, 315510), (78, 279105), (90, 241891), (115, 189306), (117, 186070), (130, 167463), (138, 157755), (195, 111642), (207, 105170), (230, 94653), (234, 93035), (299, 72810), (345, 63102), (390, 55821), (414, 52585), (585, 37214), (598, 36405), (690, 31551), (809, 26910), (897, 24270), (1035, 21034), (1170, 18607), (1495, 14562), (1618, 13455), (1794, 12135), (2070, 10517), (2427, 8970), (2691, 8090), (2990, 7281), (4045, 5382), (4485, 4854)]