21461700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5503}}^1$

素因数の和:5533

約数の個数: 72

約数和(自身を含む): 66884608

約数和(自身を除く): 45422908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5503, 11006, 16509, 22012, 27515, 33018, 55030, 66036, 71539, 82545, 110060, 137575, 143078, 165090, 214617, 275150, 286156, 330180, 357695, 412725, 429234, 550300, 715390, 825450, 858468, 1073085, 1430780, 1650900, 1788475, 2146170, 3576950, 4292340, 5365425, 7153900, 10730850, 21461700]

約数ペア:

[(1, 21461700), (2, 10730850), (3, 7153900), (4, 5365425), (5, 4292340), (6, 3576950), (10, 2146170), (12, 1788475), (13, 1650900), (15, 1430780), (20, 1073085), (25, 858468), (26, 825450), (30, 715390), (39, 550300), (50, 429234), (52, 412725), (60, 357695), (65, 330180), (75, 286156), (78, 275150), (100, 214617), (130, 165090), (150, 143078), (156, 137575), (195, 110060), (260, 82545), (300, 71539), (325, 66036), (390, 55030), (650, 33018), (780, 27515), (975, 22012), (1300, 16509), (1950, 11006), (3900, 5503)]