21571945304

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{40759}}^1$

素因数の和:41512

約数の個数: 64

約数和(自身を含む): 49851110400

約数和(自身を除く): 28279165096

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 727, 728, 1454, 2908, 5089, 5816, 9451, 10178, 18902, 20356, 37804, 40712, 40759, 66157, 75608, 81518, 132314, 163036, 264628, 285313, 326072, 529256, 529867, 570626, 1059734, 1141252, 2119468, 2282504, 3709069, 4238936, 7418138, 14836276, 29631793, 29672552, 59263586, 118527172, 207422551, 237054344, 385213309, 414845102, 770426618, 829690204, 1540853236, 1659380408, 2696493163, 3081706472, 5392986326, 10785972652, 21571945304]

約数ペア:

[(1, 21571945304), (2, 10785972652), (4, 5392986326), (7, 3081706472), (8, 2696493163), (13, 1659380408), (14, 1540853236), (26, 829690204), (28, 770426618), (52, 414845102), (56, 385213309), (91, 237054344), (104, 207422551), (182, 118527172), (364, 59263586), (727, 29672552), (728, 29631793), (1454, 14836276), (2908, 7418138), (5089, 4238936), (5816, 3709069), (9451, 2282504), (10178, 2119468), (18902, 1141252), (20356, 1059734), (37804, 570626), (40712, 529867), (40759, 529256), (66157, 326072), (75608, 285313), (81518, 264628), (132314, 163036)]