27801998

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 49222080

約数和(自身を除く): 21420082

約数列:

[1, 2, 7, 14, 53, 89, 106, 178, 371, 421, 623, 742, 842, 1246, 2947, 4717, 5894, 9434, 22313, 33019, 37469, 44626, 66038, 74938, 156191, 262283, 312382, 524566, 1985857, 3971714, 13900999, 27801998]

約数ペア:

[(1, 27801998), (2, 13900999), (7, 3971714), (14, 1985857), (53, 524566), (89, 312382), (106, 262283), (178, 156191), (371, 74938), (421, 66038), (623, 44626), (742, 37469), (842, 33019), (1246, 22313), (2947, 9434), (4717, 5894)]