20896876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 52157952

約数和(自身を除く): 31261076

約数列:

[1, 2, 4, 7, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 68, 77, 91, 119, 143, 154, 182, 187, 221, 238, 286, 307, 308, 364, 374, 442, 476, 572, 614, 748, 884, 1001, 1228, 1309, 1547, 2002, 2149, 2431, 2618, 3094, 3377, 3991, 4004, 4298, 4862, 5219, 5236, 6188, 6754, 7982, 8596, 9724, 10438, 13508, 15964, 17017, 20876, 23639, 27937, 34034, 36533, 43901, 47278, 55874, 57409, 67847, 68068, 73066, 87802, 94556, 111748, 114818, 135694, 146132, 175604, 229636, 271388, 307307, 401863, 474929, 614614, 746317, 803726, 949858, 1229228, 1492634, 1607452, 1899716, 2985268, 5224219, 10448438, 20896876]

約数ペア:

[(1, 20896876), (2, 10448438), (4, 5224219), (7, 2985268), (11, 1899716), (13, 1607452), (14, 1492634), (17, 1229228), (22, 949858), (26, 803726), (28, 746317), (34, 614614), (44, 474929), (52, 401863), (68, 307307), (77, 271388), (91, 229636), (119, 175604), (143, 146132), (154, 135694), (182, 114818), (187, 111748), (221, 94556), (238, 87802), (286, 73066), (307, 68068), (308, 67847), (364, 57409), (374, 55874), (442, 47278), (476, 43901), (572, 36533), (614, 34034), (748, 27937), (884, 23639), (1001, 20876), (1228, 17017), (1309, 15964), (1547, 13508), (2002, 10438), (2149, 9724), (2431, 8596), (2618, 7982), (3094, 6754), (3377, 6188), (3991, 5236), (4004, 5219), (4298, 4862)]