21019416

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{773}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 57957120

約数和(自身を除く): 36937704

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 103, 132, 206, 264, 309, 412, 618, 773, 824, 1133, 1236, 1546, 2266, 2319, 2472, 3092, 3399, 4532, 4638, 6184, 6798, 8503, 9064, 9276, 13596, 17006, 18552, 25509, 27192, 34012, 51018, 68024, 79619, 102036, 159238, 204072, 238857, 318476, 477714, 636952, 875809, 955428, 1751618, 1910856, 2627427, 3503236, 5254854, 7006472, 10509708, 21019416]

約数ペア:

[(1, 21019416), (2, 10509708), (3, 7006472), (4, 5254854), (6, 3503236), (8, 2627427), (11, 1910856), (12, 1751618), (22, 955428), (24, 875809), (33, 636952), (44, 477714), (66, 318476), (88, 238857), (103, 204072), (132, 159238), (206, 102036), (264, 79619), (309, 68024), (412, 51018), (618, 34012), (773, 27192), (824, 25509), (1133, 18552), (1236, 17006), (1546, 13596), (2266, 9276), (2319, 9064), (2472, 8503), (3092, 6798), (3399, 6184), (4532, 4638)]