19707142

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 39513600

約数和(自身を除く): 19806458

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 41, 82, 91, 133, 139, 182, 247, 266, 278, 287, 494, 533, 574, 779, 973, 1066, 1558, 1729, 1807, 1946, 2641, 3458, 3614, 3731, 5282, 5453, 5699, 7462, 10127, 10906, 11398, 12649, 18487, 20254, 25298, 34333, 36974, 39893, 68666, 70889, 74087, 79786, 108281, 141778, 148174, 216562, 240331, 480662, 518609, 757967, 1037218, 1407653, 1515934, 2815306, 9853571, 19707142]

約数ペア:

[(1, 19707142), (2, 9853571), (7, 2815306), (13, 1515934), (14, 1407653), (19, 1037218), (26, 757967), (38, 518609), (41, 480662), (82, 240331), (91, 216562), (133, 148174), (139, 141778), (182, 108281), (247, 79786), (266, 74087), (278, 70889), (287, 68666), (494, 39893), (533, 36974), (574, 34333), (779, 25298), (973, 20254), (1066, 18487), (1558, 12649), (1729, 11398), (1807, 10906), (1946, 10127), (2641, 7462), (3458, 5699), (3614, 5453), (3731, 5282)]