21534430

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1092

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 18962978

約数列:

[1, 2, 5, 10, 41, 53, 82, 106, 205, 265, 410, 530, 991, 1982, 2173, 4346, 4955, 9910, 10865, 21730, 40631, 52523, 81262, 105046, 203155, 262615, 406310, 525230, 2153443, 4306886, 10767215, 21534430]

約数ペア:

[(1, 21534430), (2, 10767215), (5, 4306886), (10, 2153443), (41, 525230), (53, 406310), (82, 262615), (106, 203155), (205, 105046), (265, 81262), (410, 52523), (530, 40631), (991, 21730), (1982, 10865), (2173, 9910), (4346, 4955)]