21396510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7669}}^1$

素因数の和:7713

約数の個数: 48

約数和(自身を含む): 57432960

約数和(自身を除く): 36036450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7669, 15338, 23007, 38345, 46014, 69021, 76690, 115035, 138042, 230070, 237739, 345105, 475478, 690210, 713217, 1188695, 1426434, 2139651, 2377390, 3566085, 4279302, 7132170, 10698255, 21396510]

約数ペア:

[(1, 21396510), (2, 10698255), (3, 7132170), (5, 4279302), (6, 3566085), (9, 2377390), (10, 2139651), (15, 1426434), (18, 1188695), (30, 713217), (31, 690210), (45, 475478), (62, 345105), (90, 237739), (93, 230070), (155, 138042), (186, 115035), (279, 76690), (310, 69021), (465, 46014), (558, 38345), (930, 23007), (1395, 15338), (2790, 7669)]