18815004

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1489}}^1$

素因数の和:1521

約数の個数: 72

約数和(自身を含む): 53151280

約数和(自身を除く): 34336276

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1489, 2106, 2978, 3159, 4212, 4467, 5956, 6318, 8934, 12636, 13401, 17868, 19357, 26802, 38714, 40203, 53604, 58071, 77428, 80406, 116142, 120609, 160812, 174213, 232284, 241218, 348426, 361827, 482436, 522639, 696852, 723654, 1045278, 1447308, 1567917, 2090556, 3135834, 4703751, 6271668, 9407502, 18815004]

約数ペア:

[(1, 18815004), (2, 9407502), (3, 6271668), (4, 4703751), (6, 3135834), (9, 2090556), (12, 1567917), (13, 1447308), (18, 1045278), (26, 723654), (27, 696852), (36, 522639), (39, 482436), (52, 361827), (54, 348426), (78, 241218), (81, 232284), (108, 174213), (117, 160812), (156, 120609), (162, 116142), (234, 80406), (243, 77428), (324, 58071), (351, 53604), (468, 40203), (486, 38714), (702, 26802), (972, 19357), (1053, 17868), (1404, 13401), (1489, 12636), (2106, 8934), (2978, 6318), (3159, 5956), (4212, 4467)]