21630105

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 44974080

約数和(自身を除く): 23343975

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 47, 63, 105, 135, 141, 189, 235, 315, 329, 423, 487, 705, 945, 987, 1269, 1461, 1645, 2115, 2435, 2961, 3409, 4383, 4935, 6345, 7305, 8883, 10227, 13149, 14805, 17045, 21915, 22889, 30681, 44415, 51135, 65745, 68667, 92043, 114445, 153405, 160223, 206001, 343335, 460215, 480669, 618003, 801115, 1030005, 1442007, 2403345, 3090015, 4326021, 7210035, 21630105]

約数ペア:

[(1, 21630105), (3, 7210035), (5, 4326021), (7, 3090015), (9, 2403345), (15, 1442007), (21, 1030005), (27, 801115), (35, 618003), (45, 480669), (47, 460215), (63, 343335), (105, 206001), (135, 160223), (141, 153405), (189, 114445), (235, 92043), (315, 68667), (329, 65745), (423, 51135), (487, 44415), (705, 30681), (945, 22889), (987, 21915), (1269, 17045), (1461, 14805), (1645, 13149), (2115, 10227), (2435, 8883), (2961, 7305), (3409, 6345), (4383, 4935)]