20521410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7517}}^1$

素因数の和:7547

約数の個数: 64

約数和(自身を含む): 60625152

約数和(自身を除く): 40103742

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7517, 15034, 22551, 37585, 45102, 52619, 75170, 97721, 105238, 112755, 157857, 195442, 225510, 263095, 293163, 315714, 488605, 526190, 586326, 684047, 789285, 977210, 1368094, 1465815, 1578570, 2052141, 2931630, 3420235, 4104282, 6840470, 10260705, 20521410]

約数ペア:

[(1, 20521410), (2, 10260705), (3, 6840470), (5, 4104282), (6, 3420235), (7, 2931630), (10, 2052141), (13, 1578570), (14, 1465815), (15, 1368094), (21, 977210), (26, 789285), (30, 684047), (35, 586326), (39, 526190), (42, 488605), (65, 315714), (70, 293163), (78, 263095), (91, 225510), (105, 195442), (130, 157857), (182, 112755), (195, 105238), (210, 97721), (273, 75170), (390, 52619), (455, 45102), (546, 37585), (910, 22551), (1365, 15034), (2730, 7517)]