21919000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{953}}^1$

素因数の和:997

約数の個数: 64

約数和(自身を含む): 53576640

約数和(自身を除く): 31657640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 920, 953, 1000, 1150, 1906, 2300, 2875, 3812, 4600, 4765, 5750, 7624, 9530, 11500, 19060, 21919, 23000, 23825, 38120, 43838, 47650, 87676, 95300, 109595, 119125, 175352, 190600, 219190, 238250, 438380, 476500, 547975, 876760, 953000, 1095950, 2191900, 2739875, 4383800, 5479750, 10959500, 21919000]

約数ペア:

[(1, 21919000), (2, 10959500), (4, 5479750), (5, 4383800), (8, 2739875), (10, 2191900), (20, 1095950), (23, 953000), (25, 876760), (40, 547975), (46, 476500), (50, 438380), (92, 238250), (100, 219190), (115, 190600), (125, 175352), (184, 119125), (200, 109595), (230, 95300), (250, 87676), (460, 47650), (500, 43838), (575, 38120), (920, 23825), (953, 23000), (1000, 21919), (1150, 19060), (1906, 11500), (2300, 9530), (2875, 7624), (3812, 5750), (4600, 4765)]