21394917

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1367}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 32438016

約数和(自身を除く): 11043099

約数列:

[1, 3, 9, 37, 47, 111, 141, 333, 423, 1367, 1739, 4101, 5217, 12303, 15651, 50579, 64249, 151737, 192747, 455211, 578241, 2377213, 7131639, 21394917]

約数ペア:

[(1, 21394917), (3, 7131639), (9, 2377213), (37, 578241), (47, 455211), (111, 192747), (141, 151737), (333, 64249), (423, 50579), (1367, 15651), (1739, 12303), (4101, 5217)]