21542710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{659}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 22936010

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 467, 659, 934, 1318, 2335, 3269, 3295, 4613, 4670, 6538, 6590, 9226, 16345, 23065, 32690, 46130, 307753, 615506, 1538765, 2154271, 3077530, 4308542, 10771355, 21542710]

約数ペア:

[(1, 21542710), (2, 10771355), (5, 4308542), (7, 3077530), (10, 2154271), (14, 1538765), (35, 615506), (70, 307753), (467, 46130), (659, 32690), (934, 23065), (1318, 16345), (2335, 9226), (3269, 6590), (3295, 6538), (4613, 4670)]