21365526

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31856874

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 109, 182, 218, 273, 327, 359, 546, 654, 718, 763, 1077, 1417, 1526, 2154, 2289, 2513, 2834, 4251, 4578, 4667, 5026, 7539, 8502, 9334, 9919, 14001, 15078, 19838, 28002, 29757, 32669, 39131, 59514, 65338, 78262, 98007, 117393, 196014, 234786, 273917, 508703, 547834, 821751, 1017406, 1526109, 1643502, 3052218, 3560921, 7121842, 10682763, 21365526]

約数ペア:

[(1, 21365526), (2, 10682763), (3, 7121842), (6, 3560921), (7, 3052218), (13, 1643502), (14, 1526109), (21, 1017406), (26, 821751), (39, 547834), (42, 508703), (78, 273917), (91, 234786), (109, 196014), (182, 117393), (218, 98007), (273, 78262), (327, 65338), (359, 59514), (546, 39131), (654, 32669), (718, 29757), (763, 28002), (1077, 19838), (1417, 15078), (1526, 14001), (2154, 9919), (2289, 9334), (2513, 8502), (2834, 7539), (4251, 5026), (4578, 4667)]