898980901

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 1157451120

約数和(自身を除く): 258470219

約数列:

[1, 7, 13, 49, 89, 91, 101, 157, 623, 637, 707, 1099, 1157, 1313, 2041, 4361, 4949, 7693, 8099, 8989, 9191, 13973, 14287, 15857, 56693, 62923, 64337, 97811, 100009, 110999, 116857, 181649, 206141, 440461, 684677, 776993, 817999, 1271543, 1411273, 1442987, 5725993, 8900801, 9878911, 10100909, 18346549, 69152377, 128425843, 898980901]

約数ペア:

[(1, 898980901), (7, 128425843), (13, 69152377), (49, 18346549), (89, 10100909), (91, 9878911), (101, 8900801), (157, 5725993), (623, 1442987), (637, 1411273), (707, 1271543), (1099, 817999), (1157, 776993), (1313, 684677), (2041, 440461), (4361, 206141), (4949, 181649), (7693, 116857), (8099, 110999), (8989, 100009), (9191, 97811), (13973, 64337), (14287, 62923), (15857, 56693)]