1904702961

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 3106262880

約数和(自身を除く): 1201559919

約数列:

[1, 3, 7, 21, 31, 49, 93, 97, 139, 147, 217, 291, 417, 651, 679, 961, 973, 1519, 2037, 2883, 2919, 3007, 4309, 4557, 4753, 6727, 6811, 9021, 12927, 13483, 14259, 20181, 20433, 21049, 30163, 40449, 47089, 63147, 90489, 93217, 94381, 133579, 141267, 147343, 211141, 279651, 283143, 400737, 417973, 442029, 633423, 652519, 660667, 935053, 1253919, 1957557, 1982001, 2805159, 2925811, 4567633, 6545371, 8777433, 12957163, 13702899, 19636113, 20480677, 38871489, 61442031, 90700141, 272100423, 634900987, 1904702961]

約数ペア:

[(1, 1904702961), (3, 634900987), (7, 272100423), (21, 90700141), (31, 61442031), (49, 38871489), (93, 20480677), (97, 19636113), (139, 13702899), (147, 12957163), (217, 8777433), (291, 6545371), (417, 4567633), (651, 2925811), (679, 2805159), (961, 1982001), (973, 1957557), (1519, 1253919), (2037, 935053), (2883, 660667), (2919, 652519), (3007, 633423), (4309, 442029), (4557, 417973), (4753, 400737), (6727, 283143), (6811, 279651), (9021, 211141), (12927, 147343), (13483, 141267), (14259, 133579), (20181, 94381), (20433, 93217), (21049, 90489), (30163, 63147), (40449, 47089)]