21450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:39

約数の個数: 48

約数和(自身を含む): 62496

約数和(自身を除く): 41046

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 25, 26, 30, 33, 39, 50, 55, 65, 66, 75, 78, 110, 130, 143, 150, 165, 195, 275, 286, 325, 330, 390, 429, 550, 650, 715, 825, 858, 975, 1430, 1650, 1950, 2145, 3575, 4290, 7150, 10725, 21450]

約数ペア:

[(1, 21450), (2, 10725), (3, 7150), (5, 4290), (6, 3575), (10, 2145), (11, 1950), (13, 1650), (15, 1430), (22, 975), (25, 858), (26, 825), (30, 715), (33, 650), (39, 550), (50, 429), (55, 390), (65, 330), (66, 325), (75, 286), (78, 275), (110, 195), (130, 165), (143, 150)]