21989044

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 96

約数和(自身を含む): 51609600

約数和(自身を除く): 29620556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 47, 49, 62, 77, 94, 98, 124, 154, 188, 196, 217, 308, 329, 341, 343, 434, 517, 539, 658, 682, 686, 868, 1034, 1078, 1316, 1364, 1372, 1457, 1519, 2068, 2156, 2303, 2387, 2914, 3038, 3619, 3773, 4606, 4774, 5828, 6076, 7238, 7546, 9212, 9548, 10199, 10633, 14476, 15092, 16027, 16121, 16709, 20398, 21266, 25333, 32054, 32242, 33418, 40796, 42532, 50666, 64108, 64484, 66836, 71393, 101332, 112189, 116963, 142786, 177331, 224378, 233926, 285572, 354662, 448756, 467852, 499751, 709324, 785323, 999502, 1570646, 1999004, 3141292, 5497261, 10994522, 21989044]

約数ペア:

[(1, 21989044), (2, 10994522), (4, 5497261), (7, 3141292), (11, 1999004), (14, 1570646), (22, 999502), (28, 785323), (31, 709324), (44, 499751), (47, 467852), (49, 448756), (62, 354662), (77, 285572), (94, 233926), (98, 224378), (124, 177331), (154, 142786), (188, 116963), (196, 112189), (217, 101332), (308, 71393), (329, 66836), (341, 64484), (343, 64108), (434, 50666), (517, 42532), (539, 40796), (658, 33418), (682, 32242), (686, 32054), (868, 25333), (1034, 21266), (1078, 20398), (1316, 16709), (1364, 16121), (1372, 16027), (1457, 15092), (1519, 14476), (2068, 10633), (2156, 10199), (2303, 9548), (2387, 9212), (2914, 7546), (3038, 7238), (3619, 6076), (3773, 5828), (4606, 4774)]