19837688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 42184800

約数和(自身を除く): 22347112

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 59, 61, 104, 106, 118, 122, 212, 236, 244, 424, 472, 488, 689, 767, 793, 1378, 1534, 1586, 2756, 3068, 3127, 3172, 3233, 3599, 5512, 6136, 6254, 6344, 6466, 7198, 12508, 12932, 14396, 25016, 25864, 28792, 40651, 42029, 46787, 81302, 84058, 93574, 162604, 168116, 187148, 190747, 325208, 336232, 374296, 381494, 762988, 1525976, 2479711, 4959422, 9918844, 19837688]

約数ペア:

[(1, 19837688), (2, 9918844), (4, 4959422), (8, 2479711), (13, 1525976), (26, 762988), (52, 381494), (53, 374296), (59, 336232), (61, 325208), (104, 190747), (106, 187148), (118, 168116), (122, 162604), (212, 93574), (236, 84058), (244, 81302), (424, 46787), (472, 42029), (488, 40651), (689, 28792), (767, 25864), (793, 25016), (1378, 14396), (1534, 12932), (1586, 12508), (2756, 7198), (3068, 6466), (3127, 6344), (3172, 6254), (3233, 6136), (3599, 5512)]