29971215

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1781

約数の個数: 40

約数和(自身を含む): 55007568

約数和(自身を除く): 25036353

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1721, 1935, 3483, 5163, 5805, 8605, 15489, 17415, 25815, 46467, 74003, 77445, 139401, 222009, 232335, 370015, 666027, 697005, 1110045, 1998081, 3330135, 5994243, 9990405, 29971215]

約数ペア:

[(1, 29971215), (3, 9990405), (5, 5994243), (9, 3330135), (15, 1998081), (27, 1110045), (43, 697005), (45, 666027), (81, 370015), (129, 232335), (135, 222009), (215, 139401), (387, 77445), (405, 74003), (645, 46467), (1161, 25815), (1721, 17415), (1935, 15489), (3483, 8605), (5163, 5805)]