21991634

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 17683246

約数列:

[1, 2, 7, 14, 23, 46, 161, 163, 322, 326, 419, 838, 1141, 2282, 2933, 3749, 5866, 7498, 9637, 19274, 26243, 52486, 67459, 68297, 134918, 136594, 478079, 956158, 1570831, 3141662, 10995817, 21991634]

約数ペア:

[(1, 21991634), (2, 10995817), (7, 3141662), (14, 1570831), (23, 956158), (46, 478079), (161, 136594), (163, 134918), (322, 68297), (326, 67459), (419, 52486), (838, 26243), (1141, 19274), (2282, 9637), (2933, 7498), (3749, 5866)]