20661438

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2267}}^1$

素因数の和:2317

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 28980546

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 93, 98, 147, 186, 217, 294, 434, 651, 1302, 1519, 2267, 3038, 4534, 4557, 6801, 9114, 13602, 15869, 31738, 47607, 70277, 95214, 111083, 140554, 210831, 222166, 333249, 421662, 491939, 666498, 983878, 1475817, 2951634, 3443573, 6887146, 10330719, 20661438]

約数ペア:

[(1, 20661438), (2, 10330719), (3, 6887146), (6, 3443573), (7, 2951634), (14, 1475817), (21, 983878), (31, 666498), (42, 491939), (49, 421662), (62, 333249), (93, 222166), (98, 210831), (147, 140554), (186, 111083), (217, 95214), (294, 70277), (434, 47607), (651, 31738), (1302, 15869), (1519, 13602), (2267, 9114), (3038, 6801), (4534, 4557)]