20921844678

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{543227}}^1$

素因数の和:543377

約数の個数: 48

約数和(自身を含む): 49046969664

約数和(自身を除く): 28125124986

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 131, 147, 262, 294, 393, 786, 917, 1834, 2751, 5502, 6419, 12838, 19257, 38514, 543227, 1086454, 1629681, 3259362, 3802589, 7605178, 11407767, 22815534, 26618123, 53236246, 71162737, 79854369, 142325474, 159708738, 213488211, 426976422, 498139159, 996278318, 1494417477, 2988834954, 3486974113, 6973948226, 10460922339, 20921844678]

約数ペア:

[(1, 20921844678), (2, 10460922339), (3, 6973948226), (6, 3486974113), (7, 2988834954), (14, 1494417477), (21, 996278318), (42, 498139159), (49, 426976422), (98, 213488211), (131, 159708738), (147, 142325474), (262, 79854369), (294, 71162737), (393, 53236246), (786, 26618123), (917, 22815534), (1834, 11407767), (2751, 7605178), (5502, 3802589), (6419, 3259362), (12838, 1629681), (19257, 1086454), (38514, 543227)]