19704195

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1$

素因数の和:769

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21767805

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 719, 783, 945, 1015, 1305, 1827, 2157, 3045, 3595, 3915, 5033, 5481, 6471, 9135, 10785, 15099, 19413, 20851, 25165, 27405, 32355, 45297, 62553, 75495, 97065, 104255, 135891, 145957, 187659, 226485, 312765, 437871, 562977, 679455, 729785, 938295, 1313613, 2189355, 2814885, 3940839, 6568065, 19704195]

約数ペア:

[(1, 19704195), (3, 6568065), (5, 3940839), (7, 2814885), (9, 2189355), (15, 1313613), (21, 938295), (27, 729785), (29, 679455), (35, 562977), (45, 437871), (63, 312765), (87, 226485), (105, 187659), (135, 145957), (145, 135891), (189, 104255), (203, 97065), (261, 75495), (315, 62553), (435, 45297), (609, 32355), (719, 27405), (783, 25165), (945, 20851), (1015, 19413), (1305, 15099), (1827, 10785), (2157, 9135), (3045, 6471), (3595, 5481), (3915, 5033)]