21580272

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:371

約数の個数: 120

約数和(自身を含む): 70154240

約数和(自身を除く): 48573968

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 79, 84, 112, 126, 144, 158, 168, 237, 252, 271, 316, 336, 474, 504, 542, 553, 632, 711, 813, 948, 1008, 1084, 1106, 1264, 1422, 1626, 1659, 1896, 1897, 2168, 2212, 2439, 2844, 3252, 3318, 3792, 3794, 4336, 4424, 4878, 4977, 5688, 5691, 6504, 6636, 7588, 8848, 9756, 9954, 11376, 11382, 13008, 13272, 15176, 17073, 19512, 19908, 21409, 22764, 26544, 30352, 34146, 39024, 39816, 42818, 45528, 64227, 68292, 79632, 85636, 91056, 128454, 136584, 149863, 171272, 192681, 256908, 273168, 299726, 342544, 385362, 449589, 513816, 599452, 770724, 899178, 1027632, 1198904, 1348767, 1541448, 1798356, 2397808, 2697534, 3082896, 3596712, 5395068, 7193424, 10790136, 21580272]

約数ペア:

[(1, 21580272), (2, 10790136), (3, 7193424), (4, 5395068), (6, 3596712), (7, 3082896), (8, 2697534), (9, 2397808), (12, 1798356), (14, 1541448), (16, 1348767), (18, 1198904), (21, 1027632), (24, 899178), (28, 770724), (36, 599452), (42, 513816), (48, 449589), (56, 385362), (63, 342544), (72, 299726), (79, 273168), (84, 256908), (112, 192681), (126, 171272), (144, 149863), (158, 136584), (168, 128454), (237, 91056), (252, 85636), (271, 79632), (316, 68292), (336, 64227), (474, 45528), (504, 42818), (542, 39816), (553, 39024), (632, 34146), (711, 30352), (813, 26544), (948, 22764), (1008, 21409), (1084, 19908), (1106, 19512), (1264, 17073), (1422, 15176), (1626, 13272), (1659, 13008), (1896, 11382), (1897, 11376), (2168, 9954), (2212, 9756), (2439, 8848), (2844, 7588), (3252, 6636), (3318, 6504), (3792, 5691), (3794, 5688), (4336, 4977), (4424, 4878)]