21627801

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 14015079

約数列:

[1, 3, 9, 13, 31, 39, 67, 89, 93, 117, 201, 267, 279, 403, 603, 801, 871, 1157, 1209, 2077, 2613, 2759, 3471, 3627, 5963, 6231, 7839, 8277, 10413, 17889, 18693, 24831, 27001, 35867, 53667, 77519, 81003, 107601, 184853, 232557, 243009, 322803, 554559, 697671, 1663677, 2403089, 7209267, 21627801]

約数ペア:

[(1, 21627801), (3, 7209267), (9, 2403089), (13, 1663677), (31, 697671), (39, 554559), (67, 322803), (89, 243009), (93, 232557), (117, 184853), (201, 107601), (267, 81003), (279, 77519), (403, 53667), (603, 35867), (801, 27001), (871, 24831), (1157, 18693), (1209, 17889), (2077, 10413), (2613, 8277), (2759, 7839), (3471, 6231), (3627, 5963)]