20557944

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 61579440

約数和(自身を除く): 41021496

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 101, 132, 198, 202, 257, 264, 303, 396, 404, 514, 606, 771, 792, 808, 909, 1028, 1111, 1212, 1542, 1818, 2056, 2222, 2313, 2424, 2827, 3084, 3333, 3636, 4444, 4626, 5654, 6168, 6666, 7272, 8481, 8888, 9252, 9999, 11308, 13332, 16962, 18504, 19998, 22616, 25443, 25957, 26664, 33924, 39996, 50886, 51914, 67848, 77871, 79992, 101772, 103828, 155742, 203544, 207656, 233613, 285527, 311484, 467226, 571054, 622968, 856581, 934452, 1142108, 1713162, 1868904, 2284216, 2569743, 3426324, 5139486, 6852648, 10278972, 20557944]

約数ペア:

[(1, 20557944), (2, 10278972), (3, 6852648), (4, 5139486), (6, 3426324), (8, 2569743), (9, 2284216), (11, 1868904), (12, 1713162), (18, 1142108), (22, 934452), (24, 856581), (33, 622968), (36, 571054), (44, 467226), (66, 311484), (72, 285527), (88, 233613), (99, 207656), (101, 203544), (132, 155742), (198, 103828), (202, 101772), (257, 79992), (264, 77871), (303, 67848), (396, 51914), (404, 50886), (514, 39996), (606, 33924), (771, 26664), (792, 25957), (808, 25443), (909, 22616), (1028, 19998), (1111, 18504), (1212, 16962), (1542, 13332), (1818, 11308), (2056, 9999), (2222, 9252), (2313, 8888), (2424, 8481), (2827, 7272), (3084, 6666), (3333, 6168), (3636, 5654), (4444, 4626)]