21208650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4561}}^1$

素因数の和:4607

約数の個数: 48

約数和(自身を含む): 54306048

約数和(自身を除く): 33097398

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4561, 4650, 9122, 13683, 22805, 27366, 45610, 68415, 114025, 136830, 141391, 228050, 282782, 342075, 424173, 684150, 706955, 848346, 1413910, 2120865, 3534775, 4241730, 7069550, 10604325, 21208650]

約数ペア:

[(1, 21208650), (2, 10604325), (3, 7069550), (5, 4241730), (6, 3534775), (10, 2120865), (15, 1413910), (25, 848346), (30, 706955), (31, 684150), (50, 424173), (62, 342075), (75, 282782), (93, 228050), (150, 141391), (155, 136830), (186, 114025), (310, 68415), (465, 45610), (775, 27366), (930, 22805), (1550, 13683), (2325, 9122), (4561, 4650)]