21406572

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 96

約数和(自身を含む): 62307840

約数和(自身を除く): 40901268

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 37, 44, 54, 66, 74, 99, 108, 111, 132, 148, 198, 222, 297, 333, 396, 407, 444, 487, 594, 666, 814, 974, 999, 1188, 1221, 1332, 1461, 1628, 1948, 1998, 2442, 2922, 3663, 3996, 4383, 4884, 5357, 5844, 7326, 8766, 10714, 10989, 13149, 14652, 16071, 17532, 18019, 21428, 21978, 26298, 32142, 36038, 43956, 48213, 52596, 54057, 64284, 72076, 96426, 108114, 144639, 162171, 192852, 198209, 216228, 289278, 324342, 396418, 486513, 578556, 594627, 648684, 792836, 973026, 1189254, 1783881, 1946052, 2378508, 3567762, 5351643, 7135524, 10703286, 21406572]

約数ペア:

[(1, 21406572), (2, 10703286), (3, 7135524), (4, 5351643), (6, 3567762), (9, 2378508), (11, 1946052), (12, 1783881), (18, 1189254), (22, 973026), (27, 792836), (33, 648684), (36, 594627), (37, 578556), (44, 486513), (54, 396418), (66, 324342), (74, 289278), (99, 216228), (108, 198209), (111, 192852), (132, 162171), (148, 144639), (198, 108114), (222, 96426), (297, 72076), (333, 64284), (396, 54057), (407, 52596), (444, 48213), (487, 43956), (594, 36038), (666, 32142), (814, 26298), (974, 21978), (999, 21428), (1188, 18019), (1221, 17532), (1332, 16071), (1461, 14652), (1628, 13149), (1948, 10989), (1998, 10714), (2442, 8766), (2922, 7326), (3663, 5844), (3996, 5357), (4383, 4884)]