21002615998

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1\times {\mathrm{4079}}^1$

素因数の和:5609

約数の個数: 64

約数和(自身を含む): 40852224000

約数和(自身を除く): 19849608002

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1489, 1729, 2978, 3458, 4079, 8158, 10423, 19357, 20846, 28291, 28553, 38714, 53027, 56582, 57106, 77501, 106054, 135499, 155002, 198037, 270998, 367783, 371189, 396074, 542507, 735566, 742378, 1007513, 1085014, 2015026, 2574481, 5148962, 6073631, 7052591, 12147262, 14105182, 42515417, 78957203, 85030834, 115398989, 157914406, 230797978, 552700421, 807792923, 1105400842, 1500186857, 1615585846, 3000373714, 10501307999, 21002615998]

約数ペア:

[(1, 21002615998), (2, 10501307999), (7, 3000373714), (13, 1615585846), (14, 1500186857), (19, 1105400842), (26, 807792923), (38, 552700421), (91, 230797978), (133, 157914406), (182, 115398989), (247, 85030834), (266, 78957203), (494, 42515417), (1489, 14105182), (1729, 12147262), (2978, 7052591), (3458, 6073631), (4079, 5148962), (8158, 2574481), (10423, 2015026), (19357, 1085014), (20846, 1007513), (28291, 742378), (28553, 735566), (38714, 542507), (53027, 396074), (56582, 371189), (57106, 367783), (77501, 270998), (106054, 198037), (135499, 155002)]