221470875

素因数分解:

$3^3\times 5^3\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 412738560

約数和(自身を除く): 191267685

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 211, 225, 311, 375, 633, 675, 933, 1055, 1125, 1555, 1899, 2799, 3165, 3375, 4665, 5275, 5697, 7775, 8397, 9495, 13995, 15825, 23325, 26375, 28485, 38875, 41985, 47475, 65621, 69975, 79125, 116625, 142425, 196863, 209925, 237375, 328105, 349875, 590589, 712125, 984315, 1049625, 1640525, 1771767, 2952945, 4921575, 8202625, 8858835, 14764725, 24607875, 44294175, 73823625, 221470875]

約数ペア:

[(1, 221470875), (3, 73823625), (5, 44294175), (9, 24607875), (15, 14764725), (25, 8858835), (27, 8202625), (45, 4921575), (75, 2952945), (125, 1771767), (135, 1640525), (211, 1049625), (225, 984315), (311, 712125), (375, 590589), (633, 349875), (675, 328105), (933, 237375), (1055, 209925), (1125, 196863), (1555, 142425), (1899, 116625), (2799, 79125), (3165, 69975), (3375, 65621), (4665, 47475), (5275, 41985), (5697, 38875), (7775, 28485), (8397, 26375), (9495, 23325), (13995, 15825)]