21631040

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2939}}^1$

素因数の和:2979

約数の個数: 56

約数和(自身を含む): 53766720

約数和(自身を除く): 32135680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2939, 3680, 5878, 7360, 11756, 14695, 23512, 29390, 47024, 58780, 67597, 94048, 117560, 135194, 188096, 235120, 270388, 337985, 470240, 540776, 675970, 940480, 1081552, 1351940, 2163104, 2703880, 4326208, 5407760, 10815520, 21631040]

約数ペア:

[(1, 21631040), (2, 10815520), (4, 5407760), (5, 4326208), (8, 2703880), (10, 2163104), (16, 1351940), (20, 1081552), (23, 940480), (32, 675970), (40, 540776), (46, 470240), (64, 337985), (80, 270388), (92, 235120), (115, 188096), (160, 135194), (184, 117560), (230, 94048), (320, 67597), (368, 58780), (460, 47024), (736, 29390), (920, 23512), (1472, 14695), (1840, 11756), (2939, 7360), (3680, 5878)]