213331335

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1753}}^1$

素因数の和:1848

約数の個数: 64

約数和(自身を含む): 417592320

約数和(自身を除く): 204260985

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 61, 95, 105, 133, 183, 285, 305, 399, 427, 665, 915, 1159, 1281, 1753, 1995, 2135, 3477, 5259, 5795, 6405, 8113, 8765, 12271, 17385, 24339, 26295, 33307, 36813, 40565, 61355, 99921, 106933, 121695, 166535, 184065, 233149, 320799, 499605, 534665, 699447, 748531, 1165745, 1603995, 2031727, 2245593, 3497235, 3742655, 6095181, 10158635, 11227965, 14222089, 30475905, 42666267, 71110445, 213331335]

約数ペア:

[(1, 213331335), (3, 71110445), (5, 42666267), (7, 30475905), (15, 14222089), (19, 11227965), (21, 10158635), (35, 6095181), (57, 3742655), (61, 3497235), (95, 2245593), (105, 2031727), (133, 1603995), (183, 1165745), (285, 748531), (305, 699447), (399, 534665), (427, 499605), (665, 320799), (915, 233149), (1159, 184065), (1281, 166535), (1753, 121695), (1995, 106933), (2135, 99921), (3477, 61355), (5259, 40565), (5795, 36813), (6405, 33307), (8113, 26295), (8765, 24339), (12271, 17385)]