21239970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41647}}^1$

素因数の和:41674

約数の個数: 32

約数和(自身を含む): 53975808

約数和(自身を除く): 32735838

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 41647, 83294, 124941, 208235, 249882, 416470, 624705, 707999, 1249410, 1415998, 2123997, 3539995, 4247994, 7079990, 10619985, 21239970]

約数ペア:

[(1, 21239970), (2, 10619985), (3, 7079990), (5, 4247994), (6, 3539995), (10, 2123997), (15, 1415998), (17, 1249410), (30, 707999), (34, 624705), (51, 416470), (85, 249882), (102, 208235), (170, 124941), (255, 83294), (510, 41647)]