21691080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:783

約数の個数: 96

約数和(自身を含む): 71393400

約数和(自身を除く): 49702320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 677, 712, 801, 890, 1068, 1335, 1354, 1602, 1780, 2031, 2136, 2670, 2708, 3204, 3385, 3560, 4005, 4062, 5340, 5416, 6093, 6408, 6770, 8010, 8124, 10155, 10680, 12186, 13540, 16020, 16248, 20310, 24372, 27080, 30465, 32040, 40620, 48744, 60253, 60930, 81240, 120506, 121860, 180759, 241012, 243720, 301265, 361518, 482024, 542277, 602530, 723036, 903795, 1084554, 1205060, 1446072, 1807590, 2169108, 2410120, 2711385, 3615180, 4338216, 5422770, 7230360, 10845540, 21691080]

約数ペア:

[(1, 21691080), (2, 10845540), (3, 7230360), (4, 5422770), (5, 4338216), (6, 3615180), (8, 2711385), (9, 2410120), (10, 2169108), (12, 1807590), (15, 1446072), (18, 1205060), (20, 1084554), (24, 903795), (30, 723036), (36, 602530), (40, 542277), (45, 482024), (60, 361518), (72, 301265), (89, 243720), (90, 241012), (120, 180759), (178, 121860), (180, 120506), (267, 81240), (356, 60930), (360, 60253), (445, 48744), (534, 40620), (677, 32040), (712, 30465), (801, 27080), (890, 24372), (1068, 20310), (1335, 16248), (1354, 16020), (1602, 13540), (1780, 12186), (2031, 10680), (2136, 10155), (2670, 8124), (2708, 8010), (3204, 6770), (3385, 6408), (3560, 6093), (4005, 5416), (4062, 5340)]