201489813

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 361015200

約数和(自身を除く): 159525387

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 139, 147, 171, 173, 399, 417, 441, 519, 931, 973, 1197, 1211, 1251, 1557, 2641, 2793, 2919, 3287, 3633, 6811, 7923, 8379, 8477, 8757, 9861, 10899, 18487, 20433, 23009, 23769, 24047, 25431, 29583, 55461, 61299, 69027, 72141, 76293, 129409, 161063, 166383, 168329, 207081, 216423, 388227, 456893, 483189, 504987, 1164681, 1178303, 1370679, 1449567, 1514961, 3198251, 3534909, 4112037, 9594753, 10604727, 22387757, 28784259, 67163271, 201489813]

約数ペア:

[(1, 201489813), (3, 67163271), (7, 28784259), (9, 22387757), (19, 10604727), (21, 9594753), (49, 4112037), (57, 3534909), (63, 3198251), (133, 1514961), (139, 1449567), (147, 1370679), (171, 1178303), (173, 1164681), (399, 504987), (417, 483189), (441, 456893), (519, 388227), (931, 216423), (973, 207081), (1197, 168329), (1211, 166383), (1251, 161063), (1557, 129409), (2641, 76293), (2793, 72141), (2919, 69027), (3287, 61299), (3633, 55461), (6811, 29583), (7923, 25431), (8379, 24047), (8477, 23769), (8757, 23009), (9861, 20433), (10899, 18487)]