21876390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7841}}^1$

素因数の和:7885

約数の個数: 48

約数和(自身を含む): 58720896

約数和(自身を除く): 36844506

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, 7841, 15682, 23523, 39205, 47046, 70569, 78410, 117615, 141138, 235230, 243071, 352845, 486142, 705690, 729213, 1215355, 1458426, 2187639, 2430710, 3646065, 4375278, 7292130, 10938195, 21876390]

約数ペア:

[(1, 21876390), (2, 10938195), (3, 7292130), (5, 4375278), (6, 3646065), (9, 2430710), (10, 2187639), (15, 1458426), (18, 1215355), (30, 729213), (31, 705690), (45, 486142), (62, 352845), (90, 243071), (93, 235230), (155, 141138), (186, 117615), (279, 78410), (310, 70569), (465, 47046), (558, 39205), (930, 23523), (1395, 15682), (2790, 7841)]