21148590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 53001216

約数和(自身を除く): 31852626

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 53, 94, 106, 141, 159, 235, 265, 282, 283, 318, 470, 530, 566, 705, 795, 849, 1410, 1415, 1590, 1698, 2491, 2830, 4245, 4982, 7473, 8490, 12455, 13301, 14946, 14999, 24910, 26602, 29998, 37365, 39903, 44997, 66505, 74730, 74995, 79806, 89994, 133010, 149990, 199515, 224985, 399030, 449970, 704953, 1409906, 2114859, 3524765, 4229718, 7049530, 10574295, 21148590]

約数ペア:

[(1, 21148590), (2, 10574295), (3, 7049530), (5, 4229718), (6, 3524765), (10, 2114859), (15, 1409906), (30, 704953), (47, 449970), (53, 399030), (94, 224985), (106, 199515), (141, 149990), (159, 133010), (235, 89994), (265, 79806), (282, 74995), (283, 74730), (318, 66505), (470, 44997), (530, 39903), (566, 37365), (705, 29998), (795, 26602), (849, 24910), (1410, 14999), (1415, 14946), (1590, 13301), (1698, 12455), (2491, 8490), (2830, 7473), (4245, 4982)]