21104280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19541}}^1$

素因数の和:19561

約数の個数: 64

約数和(自身を含む): 70351200

約数和(自身を除く): 49246920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19541, 39082, 58623, 78164, 97705, 117246, 156328, 175869, 195410, 234492, 293115, 351738, 390820, 468984, 527607, 586230, 703476, 781640, 879345, 1055214, 1172460, 1406952, 1758690, 2110428, 2344920, 2638035, 3517380, 4220856, 5276070, 7034760, 10552140, 21104280]

約数ペア:

[(1, 21104280), (2, 10552140), (3, 7034760), (4, 5276070), (5, 4220856), (6, 3517380), (8, 2638035), (9, 2344920), (10, 2110428), (12, 1758690), (15, 1406952), (18, 1172460), (20, 1055214), (24, 879345), (27, 781640), (30, 703476), (36, 586230), (40, 527607), (45, 468984), (54, 390820), (60, 351738), (72, 293115), (90, 234492), (108, 195410), (120, 175869), (135, 156328), (180, 117246), (216, 97705), (270, 78164), (360, 58623), (540, 39082), (1080, 19541)]