20425041

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 40005504

約数和(自身を除く): 19580463

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 81, 91, 117, 119, 153, 163, 189, 221, 273, 351, 357, 459, 489, 567, 663, 819, 1053, 1071, 1141, 1377, 1467, 1547, 1989, 2119, 2457, 2771, 3213, 3423, 4401, 4641, 5967, 6357, 7371, 8313, 9639, 10269, 13203, 13923, 14833, 17901, 19071, 19397, 24939, 30807, 36023, 41769, 44499, 57213, 58191, 74817, 92421, 108069, 125307, 133497, 171639, 174573, 224451, 252161, 324207, 400491, 523719, 756483, 972621, 1201473, 1571157, 2269449, 2917863, 6808347, 20425041]

約数ペア:

[(1, 20425041), (3, 6808347), (7, 2917863), (9, 2269449), (13, 1571157), (17, 1201473), (21, 972621), (27, 756483), (39, 523719), (51, 400491), (63, 324207), (81, 252161), (91, 224451), (117, 174573), (119, 171639), (153, 133497), (163, 125307), (189, 108069), (221, 92421), (273, 74817), (351, 58191), (357, 57213), (459, 44499), (489, 41769), (567, 36023), (663, 30807), (819, 24939), (1053, 19397), (1071, 19071), (1141, 17901), (1377, 14833), (1467, 13923), (1547, 13203), (1989, 10269), (2119, 9639), (2457, 8313), (2771, 7371), (3213, 6357), (3423, 5967), (4401, 4641)]