21407550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3377

約数の個数: 48

約数和(自身を含む): 54341760

約数和(自身を除く): 32934210

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 645, 1075, 1290, 2150, 3225, 3319, 6450, 6638, 9957, 16595, 19914, 33190, 49785, 82975, 99570, 142717, 165950, 248925, 285434, 428151, 497850, 713585, 856302, 1427170, 2140755, 3567925, 4281510, 7135850, 10703775, 21407550]

約数ペア:

[(1, 21407550), (2, 10703775), (3, 7135850), (5, 4281510), (6, 3567925), (10, 2140755), (15, 1427170), (25, 856302), (30, 713585), (43, 497850), (50, 428151), (75, 285434), (86, 248925), (129, 165950), (150, 142717), (215, 99570), (258, 82975), (430, 49785), (645, 33190), (1075, 19914), (1290, 16595), (2150, 9957), (3225, 6638), (3319, 6450)]