2021880091

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{839}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 2730309120

約数和(自身を除く): 708429029

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 263, 539, 833, 839, 1309, 1841, 2893, 4471, 5873, 9163, 9229, 12887, 14263, 20251, 31297, 41111, 49181, 64603, 99841, 141757, 156893, 219079, 220657, 344267, 452221, 698887, 1098251, 1544599, 2409869, 2427227, 3751169, 7687757, 10812193, 16990589, 26258183, 41262859, 118934123, 183807281, 288840013, 2021880091]

約数ペア:

[(1, 2021880091), (7, 288840013), (11, 183807281), (17, 118934123), (49, 41262859), (77, 26258183), (119, 16990589), (187, 10812193), (263, 7687757), (539, 3751169), (833, 2427227), (839, 2409869), (1309, 1544599), (1841, 1098251), (2893, 698887), (4471, 452221), (5873, 344267), (9163, 220657), (9229, 219079), (12887, 156893), (14263, 141757), (20251, 99841), (31297, 64603), (41111, 49181)]