21307500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{947}}^1$

素因数の和:977

約数の個数: 90

約数和(自身を含む): 67375308

約数和(自身を除く): 46067808

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 947, 1125, 1250, 1500, 1875, 1894, 2250, 2500, 2841, 3750, 3788, 4500, 4735, 5625, 5682, 7500, 8523, 9470, 11250, 11364, 14205, 17046, 18940, 22500, 23675, 28410, 34092, 42615, 47350, 56820, 71025, 85230, 94700, 118375, 142050, 170460, 213075, 236750, 284100, 355125, 426150, 473500, 591875, 710250, 852300, 1065375, 1183750, 1420500, 1775625, 2130750, 2367500, 3551250, 4261500, 5326875, 7102500, 10653750, 21307500]

約数ペア:

[(1, 21307500), (2, 10653750), (3, 7102500), (4, 5326875), (5, 4261500), (6, 3551250), (9, 2367500), (10, 2130750), (12, 1775625), (15, 1420500), (18, 1183750), (20, 1065375), (25, 852300), (30, 710250), (36, 591875), (45, 473500), (50, 426150), (60, 355125), (75, 284100), (90, 236750), (100, 213075), (125, 170460), (150, 142050), (180, 118375), (225, 94700), (250, 85230), (300, 71025), (375, 56820), (450, 47350), (500, 42615), (625, 34092), (750, 28410), (900, 23675), (947, 22500), (1125, 18940), (1250, 17046), (1500, 14205), (1875, 11364), (1894, 11250), (2250, 9470), (2500, 8523), (2841, 7500), (3750, 5682), (3788, 5625), (4500, 4735)]