21521490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2267

約数の個数: 64

約数和(自身を含む): 57594240

約数和(自身を除く): 36072750

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 85, 95, 102, 114, 170, 190, 255, 285, 323, 510, 570, 646, 969, 1615, 1938, 2221, 3230, 4442, 4845, 6663, 9690, 11105, 13326, 22210, 33315, 37757, 42199, 66630, 75514, 84398, 113271, 126597, 188785, 210995, 226542, 253194, 377570, 421990, 566355, 632985, 717383, 1132710, 1265970, 1434766, 2152149, 3586915, 4304298, 7173830, 10760745, 21521490]

約数ペア:

[(1, 21521490), (2, 10760745), (3, 7173830), (5, 4304298), (6, 3586915), (10, 2152149), (15, 1434766), (17, 1265970), (19, 1132710), (30, 717383), (34, 632985), (38, 566355), (51, 421990), (57, 377570), (85, 253194), (95, 226542), (102, 210995), (114, 188785), (170, 126597), (190, 113271), (255, 84398), (285, 75514), (323, 66630), (510, 42199), (570, 37757), (646, 33315), (969, 22210), (1615, 13326), (1938, 11105), (2221, 9690), (3230, 6663), (4442, 4845)]