21886436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 45638208

約数和(自身を除く): 23751772

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 83, 143, 166, 286, 332, 461, 572, 913, 922, 1079, 1826, 1844, 2158, 3652, 4316, 5071, 5993, 10142, 11869, 11986, 20284, 23738, 23972, 38263, 47476, 65923, 76526, 131846, 153052, 263692, 420893, 497419, 841786, 994838, 1683572, 1989676, 5471609, 10943218, 21886436]

約数ペア:

[(1, 21886436), (2, 10943218), (4, 5471609), (11, 1989676), (13, 1683572), (22, 994838), (26, 841786), (44, 497419), (52, 420893), (83, 263692), (143, 153052), (166, 131846), (286, 76526), (332, 65923), (461, 47476), (572, 38263), (913, 23972), (922, 23738), (1079, 20284), (1826, 11986), (1844, 11869), (2158, 10142), (3652, 5993), (4316, 5071)]