21069345

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{857}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 15996255

約数列:

[1, 3, 5, 11, 15, 33, 55, 149, 165, 447, 745, 857, 1639, 2235, 2571, 4285, 4917, 8195, 9427, 12855, 24585, 28281, 47135, 127693, 141405, 383079, 638465, 1404623, 1915395, 4213869, 7023115, 21069345]

約数ペア:

[(1, 21069345), (3, 7023115), (5, 4213869), (11, 1915395), (15, 1404623), (33, 638465), (55, 383079), (149, 141405), (165, 127693), (447, 47135), (745, 28281), (857, 24585), (1639, 12855), (2235, 9427), (2571, 8195), (4285, 4917)]