21068460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1$

素因数の和:772

約数の個数: 144

約数和(自身を含む): 76317696

約数和(自身を除く): 55249236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 727, 805, 828, 966, 1035, 1260, 1380, 1449, 1454, 1610, 1932, 2070, 2181, 2415, 2898, 2908, 3220, 3635, 4140, 4362, 4830, 5089, 5796, 6543, 7245, 7270, 8724, 9660, 10178, 10905, 13086, 14490, 14540, 15267, 16721, 20356, 21810, 25445, 26172, 28980, 30534, 32715, 33442, 43620, 45801, 50163, 50890, 61068, 65430, 66884, 76335, 83605, 91602, 100326, 101780, 117047, 130860, 150489, 152670, 167210, 183204, 200652, 229005, 234094, 250815, 300978, 305340, 334420, 351141, 458010, 468188, 501630, 585235, 601956, 702282, 752445, 916020, 1003260, 1053423, 1170470, 1404564, 1504890, 1755705, 2106846, 2340940, 3009780, 3511410, 4213692, 5267115, 7022820, 10534230, 21068460]

約数ペア:

[(1, 21068460), (2, 10534230), (3, 7022820), (4, 5267115), (5, 4213692), (6, 3511410), (7, 3009780), (9, 2340940), (10, 2106846), (12, 1755705), (14, 1504890), (15, 1404564), (18, 1170470), (20, 1053423), (21, 1003260), (23, 916020), (28, 752445), (30, 702282), (35, 601956), (36, 585235), (42, 501630), (45, 468188), (46, 458010), (60, 351141), (63, 334420), (69, 305340), (70, 300978), (84, 250815), (90, 234094), (92, 229005), (105, 200652), (115, 183204), (126, 167210), (138, 152670), (140, 150489), (161, 130860), (180, 117047), (207, 101780), (210, 100326), (230, 91602), (252, 83605), (276, 76335), (315, 66884), (322, 65430), (345, 61068), (414, 50890), (420, 50163), (460, 45801), (483, 43620), (630, 33442), (644, 32715), (690, 30534), (727, 28980), (805, 26172), (828, 25445), (966, 21810), (1035, 20356), (1260, 16721), (1380, 15267), (1449, 14540), (1454, 14490), (1610, 13086), (1932, 10905), (2070, 10178), (2181, 9660), (2415, 8724), (2898, 7270), (2908, 7245), (3220, 6543), (3635, 5796), (4140, 5089), (4362, 4830)]