21860475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3203}}^1$

素因数の和:3236

約数の個数: 48

約数和(自身を含む): 44497152

約数和(自身を除く): 22636677

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 3203, 6825, 9609, 16015, 22421, 41639, 48045, 67263, 80075, 112105, 124917, 208195, 240225, 291473, 336315, 560525, 624585, 874419, 1040975, 1457365, 1681575, 3122925, 4372095, 7286825, 21860475]

約数ペア:

[(1, 21860475), (3, 7286825), (5, 4372095), (7, 3122925), (13, 1681575), (15, 1457365), (21, 1040975), (25, 874419), (35, 624585), (39, 560525), (65, 336315), (75, 291473), (91, 240225), (105, 208195), (175, 124917), (195, 112105), (273, 80075), (325, 67263), (455, 48045), (525, 41639), (975, 22421), (1365, 16015), (2275, 9609), (3203, 6825)]