21331120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11593}}^1$

素因数の和:11629

約数の個数: 40

約数和(自身を含む): 51755616

約数和(自身を除く): 30424496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11593, 23186, 46372, 57965, 92744, 115930, 185488, 231860, 266639, 463720, 533278, 927440, 1066556, 1333195, 2133112, 2666390, 4266224, 5332780, 10665560, 21331120]

約数ペア:

[(1, 21331120), (2, 10665560), (4, 5332780), (5, 4266224), (8, 2666390), (10, 2133112), (16, 1333195), (20, 1066556), (23, 927440), (40, 533278), (46, 463720), (80, 266639), (92, 231860), (115, 185488), (184, 115930), (230, 92744), (368, 57965), (460, 46372), (920, 23186), (1840, 11593)]