20952776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 44782080

約数和(自身を除く): 23829304

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 67, 97, 104, 124, 134, 194, 248, 268, 388, 403, 536, 776, 806, 871, 1261, 1612, 1742, 2077, 2522, 3007, 3224, 3484, 4154, 5044, 6014, 6499, 6968, 8308, 10088, 12028, 12998, 16616, 24056, 25996, 27001, 39091, 51992, 54002, 78182, 84487, 108004, 156364, 168974, 201469, 216008, 312728, 337948, 402938, 675896, 805876, 1611752, 2619097, 5238194, 10476388, 20952776]

約数ペア:

[(1, 20952776), (2, 10476388), (4, 5238194), (8, 2619097), (13, 1611752), (26, 805876), (31, 675896), (52, 402938), (62, 337948), (67, 312728), (97, 216008), (104, 201469), (124, 168974), (134, 156364), (194, 108004), (248, 84487), (268, 78182), (388, 54002), (403, 51992), (536, 39091), (776, 27001), (806, 25996), (871, 24056), (1261, 16616), (1612, 12998), (1742, 12028), (2077, 10088), (2522, 8308), (3007, 6968), (3224, 6499), (3484, 6014), (4154, 5044)]