221505726

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{907}}^1$

素因数の和:1057

約数の個数: 64

約数和(自身を含む): 497903616

約数和(自身を除く): 276397890

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 101, 186, 202, 303, 403, 606, 806, 907, 1209, 1313, 1814, 2418, 2626, 2721, 3131, 3939, 5442, 6262, 7878, 9393, 11791, 18786, 23582, 28117, 35373, 40703, 56234, 70746, 81406, 84351, 91607, 122109, 168702, 183214, 244218, 274821, 365521, 549642, 731042, 1096563, 1190891, 2193126, 2381782, 2839817, 3572673, 5679634, 7145346, 8519451, 17038902, 36917621, 73835242, 110752863, 221505726]

約数ペア:

[(1, 221505726), (2, 110752863), (3, 73835242), (6, 36917621), (13, 17038902), (26, 8519451), (31, 7145346), (39, 5679634), (62, 3572673), (78, 2839817), (93, 2381782), (101, 2193126), (186, 1190891), (202, 1096563), (303, 731042), (403, 549642), (606, 365521), (806, 274821), (907, 244218), (1209, 183214), (1313, 168702), (1814, 122109), (2418, 91607), (2626, 84351), (2721, 81406), (3131, 70746), (3939, 56234), (5442, 40703), (6262, 35373), (7878, 28117), (9393, 23582), (11791, 18786)]