19781916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 58490880

約数和(自身を除く): 38708964

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 79, 84, 132, 154, 158, 231, 237, 271, 308, 316, 462, 474, 542, 553, 813, 869, 924, 948, 1084, 1106, 1626, 1659, 1738, 1897, 2212, 2607, 2981, 3252, 3318, 3476, 3794, 5214, 5691, 5962, 6083, 6636, 7588, 8943, 10428, 11382, 11924, 12166, 17886, 18249, 20867, 21409, 22764, 24332, 35772, 36498, 41734, 42818, 62601, 64227, 72996, 83468, 85636, 125202, 128454, 149863, 235499, 250404, 256908, 299726, 449589, 470998, 599452, 706497, 899178, 941996, 1412994, 1648493, 1798356, 2825988, 3296986, 4945479, 6593972, 9890958, 19781916]

約数ペア:

[(1, 19781916), (2, 9890958), (3, 6593972), (4, 4945479), (6, 3296986), (7, 2825988), (11, 1798356), (12, 1648493), (14, 1412994), (21, 941996), (22, 899178), (28, 706497), (33, 599452), (42, 470998), (44, 449589), (66, 299726), (77, 256908), (79, 250404), (84, 235499), (132, 149863), (154, 128454), (158, 125202), (231, 85636), (237, 83468), (271, 72996), (308, 64227), (316, 62601), (462, 42818), (474, 41734), (542, 36498), (553, 35772), (813, 24332), (869, 22764), (924, 21409), (948, 20867), (1084, 18249), (1106, 17886), (1626, 12166), (1659, 11924), (1738, 11382), (1897, 10428), (2212, 8943), (2607, 7588), (2981, 6636), (3252, 6083), (3318, 5962), (3476, 5691), (3794, 5214)]