21979080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:500

約数の個数: 128

約数和(自身を含む): 74995200

約数和(自身を除く): 53016120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 433, 470, 540, 564, 705, 846, 866, 940, 1080, 1128, 1269, 1299, 1410, 1692, 1732, 1880, 2115, 2165, 2538, 2598, 2820, 3384, 3464, 3897, 4230, 4330, 5076, 5196, 5640, 6345, 6495, 7794, 8460, 8660, 10152, 10392, 11691, 12690, 12990, 15588, 16920, 17320, 19485, 20351, 23382, 25380, 25980, 31176, 38970, 40702, 46764, 50760, 51960, 58455, 61053, 77940, 81404, 93528, 101755, 116910, 122106, 155880, 162808, 183159, 203510, 233820, 244212, 305265, 366318, 407020, 467640, 488424, 549477, 610530, 732636, 814040, 915795, 1098954, 1221060, 1465272, 1831590, 2197908, 2442120, 2747385, 3663180, 4395816, 5494770, 7326360, 10989540, 21979080]

約数ペア:

[(1, 21979080), (2, 10989540), (3, 7326360), (4, 5494770), (5, 4395816), (6, 3663180), (8, 2747385), (9, 2442120), (10, 2197908), (12, 1831590), (15, 1465272), (18, 1221060), (20, 1098954), (24, 915795), (27, 814040), (30, 732636), (36, 610530), (40, 549477), (45, 488424), (47, 467640), (54, 407020), (60, 366318), (72, 305265), (90, 244212), (94, 233820), (108, 203510), (120, 183159), (135, 162808), (141, 155880), (180, 122106), (188, 116910), (216, 101755), (235, 93528), (270, 81404), (282, 77940), (360, 61053), (376, 58455), (423, 51960), (433, 50760), (470, 46764), (540, 40702), (564, 38970), (705, 31176), (846, 25980), (866, 25380), (940, 23382), (1080, 20351), (1128, 19485), (1269, 17320), (1299, 16920), (1410, 15588), (1692, 12990), (1732, 12690), (1880, 11691), (2115, 10392), (2165, 10152), (2538, 8660), (2598, 8460), (2820, 7794), (3384, 6495), (3464, 6345), (3897, 5640), (4230, 5196), (4330, 5076)]