21465990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2621}}^1$

素因数の和:2654

約数の個数: 96

約数和(自身を含む): 68717376

約数和(自身を除く): 47251386

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2621, 2730, 4095, 5242, 7863, 8190, 13105, 15726, 18347, 23589, 26210, 34073, 36694, 39315, 47178, 55041, 68146, 78630, 91735, 102219, 110082, 117945, 165123, 170365, 183470, 204438, 235890, 238511, 275205, 306657, 330246, 340730, 477022, 511095, 550410, 613314, 715533, 825615, 1022190, 1192555, 1431066, 1533285, 1651230, 2146599, 2385110, 3066570, 3577665, 4293198, 7155330, 10732995, 21465990]

約数ペア:

[(1, 21465990), (2, 10732995), (3, 7155330), (5, 4293198), (6, 3577665), (7, 3066570), (9, 2385110), (10, 2146599), (13, 1651230), (14, 1533285), (15, 1431066), (18, 1192555), (21, 1022190), (26, 825615), (30, 715533), (35, 613314), (39, 550410), (42, 511095), (45, 477022), (63, 340730), (65, 330246), (70, 306657), (78, 275205), (90, 238511), (91, 235890), (105, 204438), (117, 183470), (126, 170365), (130, 165123), (182, 117945), (195, 110082), (210, 102219), (234, 91735), (273, 78630), (315, 68146), (390, 55041), (455, 47178), (546, 39315), (585, 36694), (630, 34073), (819, 26210), (910, 23589), (1170, 18347), (1365, 15726), (1638, 13105), (2621, 8190), (2730, 7863), (4095, 5242)]