21706210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^3\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 40921200

約数和(自身を除く): 19214990

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 841, 890, 1682, 2581, 4205, 5162, 8410, 12905, 24389, 25810, 48778, 74849, 121945, 149698, 243890, 374245, 748490, 2170621, 4341242, 10853105, 21706210]

約数ペア:

[(1, 21706210), (2, 10853105), (5, 4341242), (10, 2170621), (29, 748490), (58, 374245), (89, 243890), (145, 149698), (178, 121945), (290, 74849), (445, 48778), (841, 25810), (890, 24389), (1682, 12905), (2581, 8410), (4205, 5162)]