21167247020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{509563}}^1$

素因数の和:509670

約数の個数: 48

約数和(自身を含む): 46570073088

約数和(自身を除く): 25402826068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 620, 670, 1340, 2077, 4154, 8308, 10385, 20770, 41540, 509563, 1019126, 2038252, 2547815, 5095630, 10191260, 15796453, 31592906, 34140721, 63185812, 68281442, 78982265, 136562884, 157964530, 170703605, 315929060, 341407210, 682814420, 1058362351, 2116724702, 4233449404, 5291811755, 10583623510, 21167247020]

約数ペア:

[(1, 21167247020), (2, 10583623510), (4, 5291811755), (5, 4233449404), (10, 2116724702), (20, 1058362351), (31, 682814420), (62, 341407210), (67, 315929060), (124, 170703605), (134, 157964530), (155, 136562884), (268, 78982265), (310, 68281442), (335, 63185812), (620, 34140721), (670, 31592906), (1340, 15796453), (2077, 10191260), (4154, 5095630), (8308, 2547815), (10385, 2038252), (20770, 1019126), (41540, 509563)]