21975932

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 44782080

約数和(自身を除く): 22806148

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 97, 194, 209, 271, 388, 418, 542, 836, 1067, 1084, 1843, 2134, 2981, 3686, 4268, 5149, 5962, 7372, 10298, 11924, 20273, 20596, 26287, 40546, 52574, 56639, 81092, 105148, 113278, 226556, 289157, 499453, 578314, 998906, 1156628, 1997812, 5493983, 10987966, 21975932]

約数ペア:

[(1, 21975932), (2, 10987966), (4, 5493983), (11, 1997812), (19, 1156628), (22, 998906), (38, 578314), (44, 499453), (76, 289157), (97, 226556), (194, 113278), (209, 105148), (271, 81092), (388, 56639), (418, 52574), (542, 40546), (836, 26287), (1067, 20596), (1084, 20273), (1843, 11924), (2134, 10298), (2981, 7372), (3686, 5962), (4268, 5149)]