21810918

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{787}}^1$

素因数の和:972

約数の個数: 32

約数和(自身を含む): 45388800

約数和(自身を除く): 23577882

約数列:

[1, 2, 3, 6, 31, 62, 93, 149, 186, 298, 447, 787, 894, 1574, 2361, 4619, 4722, 9238, 13857, 24397, 27714, 48794, 73191, 117263, 146382, 234526, 351789, 703578, 3635153, 7270306, 10905459, 21810918]

約数ペア:

[(1, 21810918), (2, 10905459), (3, 7270306), (6, 3635153), (31, 703578), (62, 351789), (93, 234526), (149, 146382), (186, 117263), (298, 73191), (447, 48794), (787, 27714), (894, 24397), (1574, 13857), (2361, 9238), (4619, 4722)]