2002911911

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1801}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 2737944384

約数和(自身を除く): 735032473

約数列:

[1, 7, 11, 13, 77, 91, 101, 121, 143, 707, 847, 1001, 1111, 1313, 1573, 1801, 7777, 9191, 11011, 12221, 12607, 14443, 19811, 23413, 85547, 101101, 138677, 158873, 163891, 181901, 217921, 257543, 1112111, 1273307, 1525447, 1802801, 2000911, 2364713, 2832973, 14006377, 16552991, 19830811, 22010021, 26011843, 154070147, 182082901, 286130273, 2002911911]

約数ペア:

[(1, 2002911911), (7, 286130273), (11, 182082901), (13, 154070147), (77, 26011843), (91, 22010021), (101, 19830811), (121, 16552991), (143, 14006377), (707, 2832973), (847, 2364713), (1001, 2000911), (1111, 1802801), (1313, 1525447), (1573, 1273307), (1801, 1112111), (7777, 257543), (9191, 217921), (11011, 181901), (12221, 163891), (12607, 158873), (14443, 138677), (19811, 101101), (23413, 85547)]