21123288

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{5147}}^1$

素因数の和:5181

約数の個数: 64

約数和(自身を含む): 61776000

約数和(自身を除く): 40652712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 5147, 10294, 15441, 20588, 30882, 41176, 46323, 61764, 92646, 97793, 123528, 138969, 185292, 195586, 277938, 293379, 370584, 391172, 555876, 586758, 782344, 880137, 1111752, 1173516, 1760274, 2347032, 2640411, 3520548, 5280822, 7041096, 10561644, 21123288]

約数ペア:

[(1, 21123288), (2, 10561644), (3, 7041096), (4, 5280822), (6, 3520548), (8, 2640411), (9, 2347032), (12, 1760274), (18, 1173516), (19, 1111752), (24, 880137), (27, 782344), (36, 586758), (38, 555876), (54, 391172), (57, 370584), (72, 293379), (76, 277938), (108, 195586), (114, 185292), (152, 138969), (171, 123528), (216, 97793), (228, 92646), (342, 61764), (456, 46323), (513, 41176), (684, 30882), (1026, 20588), (1368, 15441), (2052, 10294), (4104, 5147)]