20421804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1201}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 51830240

約数和(自身を除く): 31408436

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 109, 156, 218, 327, 436, 654, 1201, 1308, 1417, 2402, 2834, 3603, 4251, 4804, 5668, 7206, 8502, 14412, 15613, 17004, 31226, 46839, 62452, 93678, 130909, 187356, 261818, 392727, 523636, 785454, 1570908, 1701817, 3403634, 5105451, 6807268, 10210902, 20421804]

約数ペア:

[(1, 20421804), (2, 10210902), (3, 6807268), (4, 5105451), (6, 3403634), (12, 1701817), (13, 1570908), (26, 785454), (39, 523636), (52, 392727), (78, 261818), (109, 187356), (156, 130909), (218, 93678), (327, 62452), (436, 46839), (654, 31226), (1201, 17004), (1308, 15613), (1417, 14412), (2402, 8502), (2834, 7206), (3603, 5668), (4251, 4804)]