21408750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{173}}^1$

素因数の和:212

約数の個数: 120

約数和(自身を含む): 63598392

約数和(自身を除く): 42189642

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 125, 150, 165, 173, 198, 225, 250, 275, 330, 346, 375, 450, 495, 519, 550, 625, 750, 825, 865, 990, 1038, 1125, 1250, 1375, 1557, 1650, 1730, 1875, 1903, 2250, 2475, 2595, 2750, 3114, 3750, 3806, 4125, 4325, 4950, 5190, 5625, 5709, 6875, 7785, 8250, 8650, 9515, 11250, 11418, 12375, 12975, 13750, 15570, 17127, 19030, 20625, 21625, 24750, 25950, 28545, 34254, 38925, 41250, 43250, 47575, 57090, 61875, 64875, 77850, 85635, 95150, 108125, 123750, 129750, 142725, 171270, 194625, 216250, 237875, 285450, 324375, 389250, 428175, 475750, 648750, 713625, 856350, 973125, 1189375, 1427250, 1946250, 2140875, 2378750, 3568125, 4281750, 7136250, 10704375, 21408750]

約数ペア:

[(1, 21408750), (2, 10704375), (3, 7136250), (5, 4281750), (6, 3568125), (9, 2378750), (10, 2140875), (11, 1946250), (15, 1427250), (18, 1189375), (22, 973125), (25, 856350), (30, 713625), (33, 648750), (45, 475750), (50, 428175), (55, 389250), (66, 324375), (75, 285450), (90, 237875), (99, 216250), (110, 194625), (125, 171270), (150, 142725), (165, 129750), (173, 123750), (198, 108125), (225, 95150), (250, 85635), (275, 77850), (330, 64875), (346, 61875), (375, 57090), (450, 47575), (495, 43250), (519, 41250), (550, 38925), (625, 34254), (750, 28545), (825, 25950), (865, 24750), (990, 21625), (1038, 20625), (1125, 19030), (1250, 17127), (1375, 15570), (1557, 13750), (1650, 12975), (1730, 12375), (1875, 11418), (1903, 11250), (2250, 9515), (2475, 8650), (2595, 8250), (2750, 7785), (3114, 6875), (3750, 5709), (3806, 5625), (4125, 5190), (4325, 4950)]