21018711636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1448767}}^1$

素因数の和:1448821

約数の個数: 72

約数和(自身を含む): 59063373824

約数和(自身を除く): 38044662188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1612, 2418, 3627, 4836, 7254, 14508, 1448767, 2897534, 4346301, 5795068, 8692602, 13038903, 17385204, 18833971, 26077806, 37667942, 44911777, 52155612, 56501913, 75335884, 89823554, 113003826, 134735331, 169505739, 179647108, 226007652, 269470662, 339011478, 404205993, 538941324, 583853101, 678022956, 808411986, 1167706202, 1616823972, 1751559303, 2335412404, 3503118606, 5254677909, 7006237212, 10509355818, 21018711636]

約数ペア:

[(1, 21018711636), (2, 10509355818), (3, 7006237212), (4, 5254677909), (6, 3503118606), (9, 2335412404), (12, 1751559303), (13, 1616823972), (18, 1167706202), (26, 808411986), (31, 678022956), (36, 583853101), (39, 538941324), (52, 404205993), (62, 339011478), (78, 269470662), (93, 226007652), (117, 179647108), (124, 169505739), (156, 134735331), (186, 113003826), (234, 89823554), (279, 75335884), (372, 56501913), (403, 52155612), (468, 44911777), (558, 37667942), (806, 26077806), (1116, 18833971), (1209, 17385204), (1612, 13038903), (2418, 8692602), (3627, 5795068), (4836, 4346301), (7254, 2897534), (14508, 1448767)]