21719776

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 24849824

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 109, 208, 218, 416, 436, 479, 872, 958, 1417, 1744, 1916, 2834, 3488, 3832, 5668, 6227, 7664, 11336, 12454, 15328, 22672, 24908, 45344, 49816, 52211, 99632, 104422, 199264, 208844, 417688, 678743, 835376, 1357486, 1670752, 2714972, 5429944, 10859888, 21719776]

約数ペア:

[(1, 21719776), (2, 10859888), (4, 5429944), (8, 2714972), (13, 1670752), (16, 1357486), (26, 835376), (32, 678743), (52, 417688), (104, 208844), (109, 199264), (208, 104422), (218, 99632), (416, 52211), (436, 49816), (479, 45344), (872, 24908), (958, 22672), (1417, 15328), (1744, 12454), (1916, 11336), (2834, 7664), (3488, 6227), (3832, 5668)]