21314360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17189}}^1$

素因数の和:17231

約数の個数: 32

約数和(自身を含む): 49507200

約数和(自身を除く): 28192840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17189, 34378, 68756, 85945, 137512, 171890, 343780, 532859, 687560, 1065718, 2131436, 2664295, 4262872, 5328590, 10657180, 21314360]

約数ペア:

[(1, 21314360), (2, 10657180), (4, 5328590), (5, 4262872), (8, 2664295), (10, 2131436), (20, 1065718), (31, 687560), (40, 532859), (62, 343780), (124, 171890), (155, 137512), (248, 85945), (310, 68756), (620, 34378), (1240, 17189)]