21137559856

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2816839}}^1$

素因数の和:2816921

約数の個数: 40

約数和(自身を含む): 47503189760

約数和(自身を除く): 26365629904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 3752, 7504, 2816839, 5633678, 11267356, 19717873, 22534712, 39435746, 45069424, 78871492, 157742984, 188728213, 315485968, 377456426, 754912852, 1321097491, 1509825704, 2642194982, 3019651408, 5284389964, 10568779928, 21137559856]

約数ペア:

[(1, 21137559856), (2, 10568779928), (4, 5284389964), (7, 3019651408), (8, 2642194982), (14, 1509825704), (16, 1321097491), (28, 754912852), (56, 377456426), (67, 315485968), (112, 188728213), (134, 157742984), (268, 78871492), (469, 45069424), (536, 39435746), (938, 22534712), (1072, 19717873), (1876, 11267356), (3752, 5633678), (7504, 2816839)]