21384668

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 40857600

約数和(自身を除く): 19472932

約数列:

[1, 2, 4, 31, 37, 59, 62, 74, 79, 118, 124, 148, 158, 236, 316, 1147, 1829, 2183, 2294, 2449, 2923, 3658, 4366, 4588, 4661, 4898, 5846, 7316, 8732, 9322, 9796, 11692, 18644, 67673, 90613, 135346, 144491, 172457, 181226, 270692, 288982, 344914, 362452, 577964, 689828, 5346167, 10692334, 21384668]

約数ペア:

[(1, 21384668), (2, 10692334), (4, 5346167), (31, 689828), (37, 577964), (59, 362452), (62, 344914), (74, 288982), (79, 270692), (118, 181226), (124, 172457), (148, 144491), (158, 135346), (236, 90613), (316, 67673), (1147, 18644), (1829, 11692), (2183, 9796), (2294, 9322), (2449, 8732), (2923, 7316), (3658, 5846), (4366, 4898), (4588, 4661)]