21890850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{7681}}^1$

素因数の和:7715

約数の個数: 48

約数和(自身を含む): 57154080

約数和(自身を除く): 35263230

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 150, 190, 285, 475, 570, 950, 1425, 2850, 7681, 15362, 23043, 38405, 46086, 76810, 115215, 145939, 192025, 230430, 291878, 384050, 437817, 576075, 729695, 875634, 1152150, 1459390, 2189085, 3648475, 4378170, 7296950, 10945425, 21890850]

約数ペア:

[(1, 21890850), (2, 10945425), (3, 7296950), (5, 4378170), (6, 3648475), (10, 2189085), (15, 1459390), (19, 1152150), (25, 875634), (30, 729695), (38, 576075), (50, 437817), (57, 384050), (75, 291878), (95, 230430), (114, 192025), (150, 145939), (190, 115215), (285, 76810), (475, 46086), (570, 38405), (950, 23043), (1425, 15362), (2850, 7681)]