20744748

素因数分解:

$2^2\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1489}}^1$

素因数の和:1548

約数の個数: 60

約数和(自身を含む): 55529320

約数和(自身を除く): 34784572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 258, 324, 387, 516, 774, 1161, 1489, 1548, 2322, 2978, 3483, 4467, 4644, 5956, 6966, 8934, 13401, 13932, 17868, 26802, 40203, 53604, 64027, 80406, 120609, 128054, 160812, 192081, 241218, 256108, 384162, 482436, 576243, 768324, 1152486, 1728729, 2304972, 3457458, 5186187, 6914916, 10372374, 20744748]

約数ペア:

[(1, 20744748), (2, 10372374), (3, 6914916), (4, 5186187), (6, 3457458), (9, 2304972), (12, 1728729), (18, 1152486), (27, 768324), (36, 576243), (43, 482436), (54, 384162), (81, 256108), (86, 241218), (108, 192081), (129, 160812), (162, 128054), (172, 120609), (258, 80406), (324, 64027), (387, 53604), (516, 40203), (774, 26802), (1161, 17868), (1489, 13932), (1548, 13401), (2322, 8934), (2978, 6966), (3483, 5956), (4467, 4644)]