20422402

素因数分解:

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

素因数の和:235

約数の個数: 48

約数和(自身を含む): 41541696

約数和(自身を除く): 21119294

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 101, 143, 154, 182, 202, 286, 707, 1001, 1111, 1313, 1414, 2002, 2222, 2626, 7777, 9191, 10201, 14443, 15554, 18382, 20402, 28886, 71407, 101101, 112211, 132613, 142814, 202202, 224422, 265226, 785477, 928291, 1458743, 1570954, 1856582, 2917486, 10211201, 20422402]

約数ペア:

[(1, 20422402), (2, 10211201), (7, 2917486), (11, 1856582), (13, 1570954), (14, 1458743), (22, 928291), (26, 785477), (77, 265226), (91, 224422), (101, 202202), (143, 142814), (154, 132613), (182, 112211), (202, 101101), (286, 71407), (707, 28886), (1001, 20402), (1111, 18382), (1313, 15554), (1414, 14443), (2002, 10201), (2222, 9191), (2626, 7777)]