20521788

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2053}}^1$

素因数の和:2091

約数の個数: 72

約数和(自身を含む): 59007312

約数和(自身を除く): 38485524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 147, 196, 204, 238, 294, 357, 476, 588, 714, 833, 1428, 1666, 2053, 2499, 3332, 4106, 4998, 6159, 8212, 9996, 12318, 14371, 24636, 28742, 34901, 43113, 57484, 69802, 86226, 100597, 104703, 139604, 172452, 201194, 209406, 244307, 301791, 402388, 418812, 488614, 603582, 732921, 977228, 1207164, 1465842, 1710149, 2931684, 3420298, 5130447, 6840596, 10260894, 20521788]

約数ペア:

[(1, 20521788), (2, 10260894), (3, 6840596), (4, 5130447), (6, 3420298), (7, 2931684), (12, 1710149), (14, 1465842), (17, 1207164), (21, 977228), (28, 732921), (34, 603582), (42, 488614), (49, 418812), (51, 402388), (68, 301791), (84, 244307), (98, 209406), (102, 201194), (119, 172452), (147, 139604), (196, 104703), (204, 100597), (238, 86226), (294, 69802), (357, 57484), (476, 43113), (588, 34901), (714, 28742), (833, 24636), (1428, 14371), (1666, 12318), (2053, 9996), (2499, 8212), (3332, 6159), (4106, 4998)]