18856474

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 38308788

約数和(自身を除く): 19452314

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 41, 49, 82, 91, 98, 133, 182, 247, 266, 287, 361, 494, 533, 574, 637, 722, 779, 931, 1066, 1274, 1558, 1729, 1862, 2009, 2527, 3458, 3731, 4018, 4693, 5054, 5453, 7462, 9386, 10127, 10906, 12103, 14801, 17689, 20254, 24206, 26117, 29602, 32851, 35378, 38171, 52234, 65702, 70889, 76342, 103607, 141778, 192413, 207214, 229957, 384826, 459914, 496223, 725249, 992446, 1346891, 1450498, 2693782, 9428237, 18856474]

約数ペア:

[(1, 18856474), (2, 9428237), (7, 2693782), (13, 1450498), (14, 1346891), (19, 992446), (26, 725249), (38, 496223), (41, 459914), (49, 384826), (82, 229957), (91, 207214), (98, 192413), (133, 141778), (182, 103607), (247, 76342), (266, 70889), (287, 65702), (361, 52234), (494, 38171), (533, 35378), (574, 32851), (637, 29602), (722, 26117), (779, 24206), (931, 20254), (1066, 17689), (1274, 14801), (1558, 12103), (1729, 10906), (1862, 10127), (2009, 9386), (2527, 7462), (3458, 5453), (3731, 5054), (4018, 4693)]