21903210

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3863}}^1$

素因数の和:3889

約数の個数: 80

約数和(自身を含む): 67326336

約数和(自身を除く): 45423126

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3863, 5670, 7726, 11589, 19315, 23178, 27041, 34767, 38630, 54082, 57945, 69534, 81123, 104301, 115890, 135205, 162246, 173835, 208602, 243369, 270410, 312903, 347670, 405615, 486738, 521505, 625806, 730107, 811230, 1043010, 1216845, 1460214, 1564515, 2190321, 2433690, 3129030, 3650535, 4380642, 7301070, 10951605, 21903210]

約数ペア:

[(1, 21903210), (2, 10951605), (3, 7301070), (5, 4380642), (6, 3650535), (7, 3129030), (9, 2433690), (10, 2190321), (14, 1564515), (15, 1460214), (18, 1216845), (21, 1043010), (27, 811230), (30, 730107), (35, 625806), (42, 521505), (45, 486738), (54, 405615), (63, 347670), (70, 312903), (81, 270410), (90, 243369), (105, 208602), (126, 173835), (135, 162246), (162, 135205), (189, 115890), (210, 104301), (270, 81123), (315, 69534), (378, 57945), (405, 54082), (567, 38630), (630, 34767), (810, 27041), (945, 23178), (1134, 19315), (1890, 11589), (2835, 7726), (3863, 5670)]