20538882

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12539}}^1$

素因数の和:12567

約数の個数: 48

約数和(自身を含む): 54774720

約数和(自身を除く): 34235838

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12539, 25078, 37617, 75234, 87773, 112851, 163007, 175546, 225702, 263319, 326014, 489021, 526638, 789957, 978042, 1141049, 1467063, 1579914, 2282098, 2934126, 3423147, 6846294, 10269441, 20538882]

約数ペア:

[(1, 20538882), (2, 10269441), (3, 6846294), (6, 3423147), (7, 2934126), (9, 2282098), (13, 1579914), (14, 1467063), (18, 1141049), (21, 978042), (26, 789957), (39, 526638), (42, 489021), (63, 326014), (78, 263319), (91, 225702), (117, 175546), (126, 163007), (182, 112851), (234, 87773), (273, 75234), (546, 37617), (819, 25078), (1638, 12539)]