21718746

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{57457}}^1$

素因数の和:57475

約数の個数: 32

約数和(自身を含む): 55159680

約数和(自身を除く): 33440934

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 57457, 114914, 172371, 344742, 402199, 517113, 804398, 1034226, 1206597, 1551339, 2413194, 3102678, 3619791, 7239582, 10859373, 21718746]

約数ペア:

[(1, 21718746), (2, 10859373), (3, 7239582), (6, 3619791), (7, 3102678), (9, 2413194), (14, 1551339), (18, 1206597), (21, 1034226), (27, 804398), (42, 517113), (54, 402199), (63, 344742), (126, 172371), (189, 114914), (378, 57457)]