21811152

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:532

約数の個数: 80

約数和(自身を含む): 62228160

約数和(自身を除く): 40417008

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 101, 132, 176, 202, 264, 303, 404, 409, 528, 606, 808, 818, 1111, 1212, 1227, 1616, 1636, 2222, 2424, 2454, 3272, 3333, 4444, 4499, 4848, 4908, 6544, 6666, 8888, 8998, 9816, 13332, 13497, 17776, 17996, 19632, 26664, 26994, 35992, 41309, 53328, 53988, 71984, 82618, 107976, 123927, 165236, 215952, 247854, 330472, 454399, 495708, 660944, 908798, 991416, 1363197, 1817596, 1982832, 2726394, 3635192, 5452788, 7270384, 10905576, 21811152]

約数ペア:

[(1, 21811152), (2, 10905576), (3, 7270384), (4, 5452788), (6, 3635192), (8, 2726394), (11, 1982832), (12, 1817596), (16, 1363197), (22, 991416), (24, 908798), (33, 660944), (44, 495708), (48, 454399), (66, 330472), (88, 247854), (101, 215952), (132, 165236), (176, 123927), (202, 107976), (264, 82618), (303, 71984), (404, 53988), (409, 53328), (528, 41309), (606, 35992), (808, 26994), (818, 26664), (1111, 19632), (1212, 17996), (1227, 17776), (1616, 13497), (1636, 13332), (2222, 9816), (2424, 8998), (2454, 8888), (3272, 6666), (3333, 6544), (4444, 4908), (4499, 4848)]