18842175

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 38533248

約数和(自身を除く): 19691073

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 165, 207, 225, 253, 275, 331, 345, 495, 575, 759, 825, 993, 1035, 1265, 1655, 1725, 2277, 2475, 2979, 3641, 3795, 4965, 5175, 6325, 7613, 8275, 10923, 11385, 14895, 18205, 18975, 22839, 24825, 32769, 38065, 54615, 56925, 68517, 74475, 83743, 91025, 114195, 163845, 190325, 251229, 273075, 342585, 418715, 570975, 753687, 819225, 1256145, 1712925, 2093575, 3768435, 6280725, 18842175]

約数ペア:

[(1, 18842175), (3, 6280725), (5, 3768435), (9, 2093575), (11, 1712925), (15, 1256145), (23, 819225), (25, 753687), (33, 570975), (45, 418715), (55, 342585), (69, 273075), (75, 251229), (99, 190325), (115, 163845), (165, 114195), (207, 91025), (225, 83743), (253, 74475), (275, 68517), (331, 56925), (345, 54615), (495, 38065), (575, 32769), (759, 24825), (825, 22839), (993, 18975), (1035, 18205), (1265, 14895), (1655, 11385), (1725, 10923), (2277, 8275), (2475, 7613), (2979, 6325), (3641, 5175), (3795, 4965)]