21761008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 44191616

約数和(自身を除く): 22430608

約数列:

[1, 2, 4, 8, 16, 31, 62, 73, 124, 146, 248, 292, 496, 584, 601, 1168, 1202, 2263, 2404, 4526, 4808, 9052, 9616, 18104, 18631, 36208, 37262, 43873, 74524, 87746, 149048, 175492, 298096, 350984, 701968, 1360063, 2720126, 5440252, 10880504, 21761008]

約数ペア:

[(1, 21761008), (2, 10880504), (4, 5440252), (8, 2720126), (16, 1360063), (31, 701968), (62, 350984), (73, 298096), (124, 175492), (146, 149048), (248, 87746), (292, 74524), (496, 43873), (584, 37262), (601, 36208), (1168, 18631), (1202, 18104), (2263, 9616), (2404, 9052), (4526, 4808)]