20911410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 59714928

約数和(自身を除く): 38803518

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 61, 65, 78, 90, 117, 122, 130, 183, 195, 234, 293, 305, 366, 390, 549, 585, 586, 610, 793, 879, 915, 1098, 1170, 1465, 1586, 1758, 1830, 2379, 2637, 2745, 2930, 3809, 3965, 4395, 4758, 5274, 5490, 7137, 7618, 7930, 8790, 11427, 11895, 13185, 14274, 17873, 19045, 22854, 23790, 26370, 34281, 35685, 35746, 38090, 53619, 57135, 68562, 71370, 89365, 107238, 114270, 160857, 171405, 178730, 232349, 268095, 321714, 342810, 464698, 536190, 697047, 804285, 1161745, 1394094, 1608570, 2091141, 2323490, 3485235, 4182282, 6970470, 10455705, 20911410]

約数ペア:

[(1, 20911410), (2, 10455705), (3, 6970470), (5, 4182282), (6, 3485235), (9, 2323490), (10, 2091141), (13, 1608570), (15, 1394094), (18, 1161745), (26, 804285), (30, 697047), (39, 536190), (45, 464698), (61, 342810), (65, 321714), (78, 268095), (90, 232349), (117, 178730), (122, 171405), (130, 160857), (183, 114270), (195, 107238), (234, 89365), (293, 71370), (305, 68562), (366, 57135), (390, 53619), (549, 38090), (585, 35746), (586, 35685), (610, 34281), (793, 26370), (879, 23790), (915, 22854), (1098, 19045), (1170, 17873), (1465, 14274), (1586, 13185), (1758, 11895), (1830, 11427), (2379, 8790), (2637, 7930), (2745, 7618), (2930, 7137), (3809, 5490), (3965, 5274), (4395, 4758)]