19898396

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 42389760

約数和(自身を除く): 22491364

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 113, 133, 226, 266, 331, 452, 532, 662, 791, 1324, 1582, 2147, 2317, 3164, 4294, 4634, 6289, 8588, 9268, 12578, 15029, 25156, 30058, 37403, 44023, 60116, 74806, 88046, 149612, 176092, 261821, 523642, 710657, 1047284, 1421314, 2842628, 4974599, 9949198, 19898396]

約数ペア:

[(1, 19898396), (2, 9949198), (4, 4974599), (7, 2842628), (14, 1421314), (19, 1047284), (28, 710657), (38, 523642), (76, 261821), (113, 176092), (133, 149612), (226, 88046), (266, 74806), (331, 60116), (452, 44023), (532, 37403), (662, 30058), (791, 25156), (1324, 15029), (1582, 12578), (2147, 9268), (2317, 8588), (3164, 6289), (4294, 4634)]