20871804

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2953}}^1$

素因数の和:3010

約数の個数: 48

約数和(自身を含む): 52935680

約数和(自身を除く): 32063876

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 186, 228, 372, 589, 1178, 1767, 2356, 2953, 3534, 5906, 7068, 8859, 11812, 17718, 35436, 56107, 91543, 112214, 168321, 183086, 224428, 274629, 336642, 366172, 549258, 673284, 1098516, 1739317, 3478634, 5217951, 6957268, 10435902, 20871804]

約数ペア:

[(1, 20871804), (2, 10435902), (3, 6957268), (4, 5217951), (6, 3478634), (12, 1739317), (19, 1098516), (31, 673284), (38, 549258), (57, 366172), (62, 336642), (76, 274629), (93, 224428), (114, 183086), (124, 168321), (186, 112214), (228, 91543), (372, 56107), (589, 35436), (1178, 17718), (1767, 11812), (2356, 8859), (2953, 7068), (3534, 5906)]