21909052

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 22846148

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 73, 76, 146, 209, 292, 359, 418, 718, 803, 836, 1387, 1436, 1606, 2774, 3212, 3949, 5548, 6821, 7898, 13642, 15257, 15796, 26207, 27284, 30514, 52414, 61028, 75031, 104828, 150062, 288277, 300124, 497933, 576554, 995866, 1153108, 1991732, 5477263, 10954526, 21909052]

約数ペア:

[(1, 21909052), (2, 10954526), (4, 5477263), (11, 1991732), (19, 1153108), (22, 995866), (38, 576554), (44, 497933), (73, 300124), (76, 288277), (146, 150062), (209, 104828), (292, 75031), (359, 61028), (418, 52414), (718, 30514), (803, 27284), (836, 26207), (1387, 15796), (1436, 15257), (1606, 13642), (2774, 7898), (3212, 6821), (3949, 5548)]