21140175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 40608512

約数和(自身を除く): 19468337

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 67, 75, 105, 175, 201, 335, 469, 525, 601, 1005, 1407, 1675, 1803, 2345, 3005, 4207, 5025, 7035, 9015, 11725, 12621, 15025, 21035, 35175, 40267, 45075, 63105, 105175, 120801, 201335, 281869, 315525, 604005, 845607, 1006675, 1409345, 3020025, 4228035, 7046725, 21140175]

約数ペア:

[(1, 21140175), (3, 7046725), (5, 4228035), (7, 3020025), (15, 1409345), (21, 1006675), (25, 845607), (35, 604005), (67, 315525), (75, 281869), (105, 201335), (175, 120801), (201, 105175), (335, 63105), (469, 45075), (525, 40267), (601, 35175), (1005, 21035), (1407, 15025), (1675, 12621), (1803, 11725), (2345, 9015), (3005, 7035), (4207, 5025)]