21842875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 30438720

約数和(自身を除く): 8595845

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 425, 475, 541, 1615, 2125, 2375, 2705, 8075, 9197, 10279, 13525, 40375, 45985, 51395, 67625, 174743, 229925, 256975, 873715, 1149625, 1284875, 4368575, 21842875]

約数ペア:

[(1, 21842875), (5, 4368575), (17, 1284875), (19, 1149625), (25, 873715), (85, 256975), (95, 229925), (125, 174743), (323, 67625), (425, 51395), (475, 45985), (541, 40375), (1615, 13525), (2125, 10279), (2375, 9197), (2705, 8075)]