21323760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3863}}^1$

素因数の和:3902

約数の個数: 80

約数和(自身を含む): 68995584

約数和(自身を除く): 47671824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3863, 5520, 7726, 11589, 15452, 19315, 23178, 30904, 38630, 46356, 57945, 61808, 77260, 88849, 92712, 115890, 154520, 177698, 185424, 231780, 266547, 309040, 355396, 444245, 463560, 533094, 710792, 888490, 927120, 1066188, 1332735, 1421584, 1776980, 2132376, 2665470, 3553960, 4264752, 5330940, 7107920, 10661880, 21323760]

約数ペア:

[(1, 21323760), (2, 10661880), (3, 7107920), (4, 5330940), (5, 4264752), (6, 3553960), (8, 2665470), (10, 2132376), (12, 1776980), (15, 1421584), (16, 1332735), (20, 1066188), (23, 927120), (24, 888490), (30, 710792), (40, 533094), (46, 463560), (48, 444245), (60, 355396), (69, 309040), (80, 266547), (92, 231780), (115, 185424), (120, 177698), (138, 154520), (184, 115890), (230, 92712), (240, 88849), (276, 77260), (345, 61808), (368, 57945), (460, 46356), (552, 38630), (690, 30904), (920, 23178), (1104, 19315), (1380, 15452), (1840, 11589), (2760, 7726), (3863, 5520)]