21000296940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{276247}}^1$

素因数の和:276447

約数の個数: 96

約数和(自身を含む): 67572470784

約数和(自身を除く): 46572173844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 362, 420, 543, 724, 905, 1086, 1267, 1810, 2172, 2534, 2715, 3620, 3801, 5068, 5430, 6335, 7602, 10860, 12670, 15204, 19005, 25340, 38010, 76020, 276247, 552494, 828741, 1104988, 1381235, 1657482, 1933729, 2762470, 3314964, 3867458, 4143705, 5524940, 5801187, 7734916, 8287410, 9668645, 11602374, 16574820, 19337290, 23204748, 29005935, 38674580, 50000707, 58011870, 100001414, 116023740, 150002121, 200002828, 250003535, 300004242, 350004949, 500007070, 600008484, 700009898, 750010605, 1000014140, 1050014847, 1400019796, 1500021210, 1750024745, 2100029694, 3000042420, 3500049490, 4200059388, 5250074235, 7000098980, 10500148470, 21000296940]

約数ペア:

[(1, 21000296940), (2, 10500148470), (3, 7000098980), (4, 5250074235), (5, 4200059388), (6, 3500049490), (7, 3000042420), (10, 2100029694), (12, 1750024745), (14, 1500021210), (15, 1400019796), (20, 1050014847), (21, 1000014140), (28, 750010605), (30, 700009898), (35, 600008484), (42, 500007070), (60, 350004949), (70, 300004242), (84, 250003535), (105, 200002828), (140, 150002121), (181, 116023740), (210, 100001414), (362, 58011870), (420, 50000707), (543, 38674580), (724, 29005935), (905, 23204748), (1086, 19337290), (1267, 16574820), (1810, 11602374), (2172, 9668645), (2534, 8287410), (2715, 7734916), (3620, 5801187), (3801, 5524940), (5068, 4143705), (5430, 3867458), (6335, 3314964), (7602, 2762470), (10860, 1933729), (12670, 1657482), (15204, 1381235), (19005, 1104988), (25340, 828741), (38010, 552494), (76020, 276247)]