21210992

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6343}}^1$

素因数の和:6381

約数の個数: 40

約数和(自身を含む): 47199360

約数和(自身を除く): 25988368

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6343, 12686, 25372, 50744, 69773, 101488, 120517, 139546, 241034, 279092, 482068, 558184, 964136, 1116368, 1325687, 1928272, 2651374, 5302748, 10605496, 21210992]

約数ペア:

[(1, 21210992), (2, 10605496), (4, 5302748), (8, 2651374), (11, 1928272), (16, 1325687), (19, 1116368), (22, 964136), (38, 558184), (44, 482068), (76, 279092), (88, 241034), (152, 139546), (176, 120517), (209, 101488), (304, 69773), (418, 50744), (836, 25372), (1672, 12686), (3344, 6343)]