21001446

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 47818368

約数和(自身を除く): 26816922

約数列:

[1, 2, 3, 6, 9, 18, 31, 61, 62, 93, 122, 183, 186, 279, 366, 549, 558, 617, 1098, 1234, 1851, 1891, 3702, 3782, 5553, 5673, 11106, 11346, 17019, 19127, 34038, 37637, 38254, 57381, 75274, 112911, 114762, 172143, 225822, 338733, 344286, 677466, 1166747, 2333494, 3500241, 7000482, 10500723, 21001446]

約数ペア:

[(1, 21001446), (2, 10500723), (3, 7000482), (6, 3500241), (9, 2333494), (18, 1166747), (31, 677466), (61, 344286), (62, 338733), (93, 225822), (122, 172143), (183, 114762), (186, 112911), (279, 75274), (366, 57381), (549, 38254), (558, 37637), (617, 34038), (1098, 19127), (1234, 17019), (1851, 11346), (1891, 11106), (3702, 5673), (3782, 5553)]