1221540159

素因数分解:

$3^1\times 7^2\times {\mathrm{1607}}^1\times {\mathrm{5171}}^1$

素因数の和:6795

約数の個数: 24

約数和(自身を含む): 1896179328

約数和(自身を除く): 674639169

約数列:

[1, 3, 7, 21, 49, 147, 1607, 4821, 5171, 11249, 15513, 33747, 36197, 78743, 108591, 236229, 253379, 760137, 8309797, 24929391, 58168579, 174505737, 407180053, 1221540159]

約数ペア:

[(1, 1221540159), (3, 407180053), (7, 174505737), (21, 58168579), (49, 24929391), (147, 8309797), (1607, 760137), (4821, 253379), (5171, 236229), (11249, 108591), (15513, 78743), (33747, 36197)]