21044517

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 11614683

約数列:

[1, 3, 13, 23, 29, 39, 69, 87, 299, 377, 667, 809, 897, 1131, 2001, 2427, 8671, 10517, 18607, 23461, 26013, 31551, 55821, 70383, 241891, 304993, 539603, 725673, 914979, 1618809, 7014839, 21044517]

約数ペア:

[(1, 21044517), (3, 7014839), (13, 1618809), (23, 914979), (29, 725673), (39, 539603), (69, 304993), (87, 241891), (299, 70383), (377, 55821), (667, 31551), (809, 26013), (897, 23461), (1131, 18607), (2001, 10517), (2427, 8671)]