21915144

素因数分解:

$2^3\times 3^3\times {\mathrm{71}}^1\times {\mathrm{1429}}^1$

素因数の和:1515

約数の個数: 64

約数和(自身を含む): 61776000

約数和(自身を除く): 39860856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 71, 72, 108, 142, 213, 216, 284, 426, 568, 639, 852, 1278, 1429, 1704, 1917, 2556, 2858, 3834, 4287, 5112, 5716, 7668, 8574, 11432, 12861, 15336, 17148, 25722, 34296, 38583, 51444, 77166, 101459, 102888, 154332, 202918, 304377, 308664, 405836, 608754, 811672, 913131, 1217508, 1826262, 2435016, 2739393, 3652524, 5478786, 7305048, 10957572, 21915144]

約数ペア:

[(1, 21915144), (2, 10957572), (3, 7305048), (4, 5478786), (6, 3652524), (8, 2739393), (9, 2435016), (12, 1826262), (18, 1217508), (24, 913131), (27, 811672), (36, 608754), (54, 405836), (71, 308664), (72, 304377), (108, 202918), (142, 154332), (213, 102888), (216, 101459), (284, 77166), (426, 51444), (568, 38583), (639, 34296), (852, 25722), (1278, 17148), (1429, 15336), (1704, 12861), (1917, 11432), (2556, 8574), (2858, 7668), (3834, 5716), (4287, 5112)]