21365200

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1772

約数の個数: 60

約数和(自身を含む): 53016448

約数和(自身を除く): 31651248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 1723, 2480, 3100, 3446, 6200, 6892, 8615, 12400, 13784, 17230, 27568, 34460, 43075, 53413, 68920, 86150, 106826, 137840, 172300, 213652, 267065, 344600, 427304, 534130, 689200, 854608, 1068260, 1335325, 2136520, 2670650, 4273040, 5341300, 10682600, 21365200]

約数ペア:

[(1, 21365200), (2, 10682600), (4, 5341300), (5, 4273040), (8, 2670650), (10, 2136520), (16, 1335325), (20, 1068260), (25, 854608), (31, 689200), (40, 534130), (50, 427304), (62, 344600), (80, 267065), (100, 213652), (124, 172300), (155, 137840), (200, 106826), (248, 86150), (310, 68920), (400, 53413), (496, 43075), (620, 34460), (775, 27568), (1240, 17230), (1550, 13784), (1723, 12400), (2480, 8615), (3100, 6892), (3446, 6200)]