21623625

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 41184000

約数和(自身を除く): 19560375

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 149, 215, 225, 375, 387, 447, 645, 675, 745, 1075, 1125, 1161, 1341, 1935, 2235, 3225, 3375, 3725, 4023, 5375, 5805, 6407, 6705, 9675, 11175, 16125, 18625, 19221, 20115, 29025, 32035, 33525, 48375, 55875, 57663, 96105, 100575, 145125, 160175, 167625, 172989, 288315, 480525, 502875, 800875, 864945, 1441575, 2402625, 4324725, 7207875, 21623625]

約数ペア:

[(1, 21623625), (3, 7207875), (5, 4324725), (9, 2402625), (15, 1441575), (25, 864945), (27, 800875), (43, 502875), (45, 480525), (75, 288315), (125, 172989), (129, 167625), (135, 160175), (149, 145125), (215, 100575), (225, 96105), (375, 57663), (387, 55875), (447, 48375), (645, 33525), (675, 32035), (745, 29025), (1075, 20115), (1125, 19221), (1161, 18625), (1341, 16125), (1935, 11175), (2235, 9675), (3225, 6705), (3375, 6407), (3725, 5805), (4023, 5375)]