20405838

素因数分解:

$2^1\times 3^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 41674752

約数和(自身を除く): 21268914

約数列:

[1, 2, 3, 6, 101, 151, 202, 223, 302, 303, 446, 453, 606, 669, 906, 1338, 15251, 22523, 30502, 33673, 45046, 45753, 67346, 67569, 91506, 101019, 135138, 202038, 3400973, 6801946, 10202919, 20405838]

約数ペア:

[(1, 20405838), (2, 10202919), (3, 6801946), (6, 3400973), (101, 202038), (151, 135138), (202, 101019), (223, 91506), (302, 67569), (303, 67346), (446, 45753), (453, 45046), (606, 33673), (669, 30502), (906, 22523), (1338, 15251)]