72217089

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1901}}^1$

素因数の和:1987

約数の個数: 40

約数和(自身を含む): 125197248

約数和(自身を除く): 52980159

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 1407, 1809, 1901, 4221, 5427, 5703, 12663, 13307, 17109, 37989, 39921, 51327, 119763, 127367, 153981, 359289, 382101, 891569, 1077867, 1146303, 2674707, 3438909, 8024121, 10316727, 24072363, 72217089]

約数ペア:

[(1, 72217089), (3, 24072363), (7, 10316727), (9, 8024121), (21, 3438909), (27, 2674707), (63, 1146303), (67, 1077867), (81, 891569), (189, 382101), (201, 359289), (469, 153981), (567, 127367), (603, 119763), (1407, 51327), (1809, 39921), (1901, 37989), (4221, 17109), (5427, 13307), (5703, 12663)]