21146565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 16851003

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 121, 165, 183, 191, 305, 363, 573, 605, 671, 915, 955, 1815, 2013, 2101, 2865, 3355, 6303, 7381, 10065, 10505, 11651, 22143, 23111, 31515, 34953, 36905, 58255, 69333, 110715, 115555, 128161, 174765, 346665, 384483, 640805, 1409771, 1922415, 4229313, 7048855, 21146565]

約数ペア:

[(1, 21146565), (3, 7048855), (5, 4229313), (11, 1922415), (15, 1409771), (33, 640805), (55, 384483), (61, 346665), (121, 174765), (165, 128161), (183, 115555), (191, 110715), (305, 69333), (363, 58255), (573, 36905), (605, 34953), (671, 31515), (915, 23111), (955, 22143), (1815, 11651), (2013, 10505), (2101, 10065), (2865, 7381), (3355, 6303)]