21097665

素因数分解:

$3^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 38236968

約数和(自身を除く): 17139303

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 113, 135, 339, 405, 461, 565, 1017, 1383, 1695, 2305, 3051, 4149, 5085, 6915, 9153, 12447, 15255, 20745, 37341, 45765, 52093, 62235, 156279, 186705, 260465, 468837, 781395, 1406511, 2344185, 4219533, 7032555, 21097665]

約数ペア:

[(1, 21097665), (3, 7032555), (5, 4219533), (9, 2344185), (15, 1406511), (27, 781395), (45, 468837), (81, 260465), (113, 186705), (135, 156279), (339, 62235), (405, 52093), (461, 45765), (565, 37341), (1017, 20745), (1383, 15255), (1695, 12447), (2305, 9153), (3051, 6915), (4149, 5085)]