1821015

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:109

約数の個数: 64

約数和(自身を含む): 3870720

約数和(自身を除く): 2049705

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 47, 63, 105, 123, 135, 141, 189, 205, 235, 287, 315, 329, 369, 423, 615, 705, 861, 945, 987, 1107, 1269, 1435, 1645, 1845, 1927, 2115, 2583, 2961, 4305, 4935, 5535, 5781, 6345, 7749, 8883, 9635, 12915, 13489, 14805, 17343, 28905, 38745, 40467, 44415, 52029, 67445, 86715, 121401, 202335, 260145, 364203, 607005, 1821015]

約数ペア:

[(1, 1821015), (3, 607005), (5, 364203), (7, 260145), (9, 202335), (15, 121401), (21, 86715), (27, 67445), (35, 52029), (41, 44415), (45, 40467), (47, 38745), (63, 28905), (105, 17343), (123, 14805), (135, 13489), (141, 12915), (189, 9635), (205, 8883), (235, 7749), (287, 6345), (315, 5781), (329, 5535), (369, 4935), (423, 4305), (615, 2961), (705, 2583), (861, 2115), (945, 1927), (987, 1845), (1107, 1645), (1269, 1435)]