21387312

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7817}}^1$

素因数の和:7850

約数の個数: 60

約数和(自身を含む): 63013080

約数和(自身を除く): 41625768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7817, 15634, 23451, 31268, 46902, 62536, 70353, 93804, 125072, 140706, 148523, 187608, 281412, 297046, 375216, 445569, 562824, 594092, 891138, 1125648, 1188184, 1336707, 1782276, 2376368, 2673414, 3564552, 5346828, 7129104, 10693656, 21387312]

約数ペア:

[(1, 21387312), (2, 10693656), (3, 7129104), (4, 5346828), (6, 3564552), (8, 2673414), (9, 2376368), (12, 1782276), (16, 1336707), (18, 1188184), (19, 1125648), (24, 891138), (36, 594092), (38, 562824), (48, 445569), (57, 375216), (72, 297046), (76, 281412), (114, 187608), (144, 148523), (152, 140706), (171, 125072), (228, 93804), (304, 70353), (342, 62536), (456, 46902), (684, 31268), (912, 23451), (1368, 15634), (2736, 7817)]