19404735

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1553}}^1$

素因数の和:1592

約数の個数: 48

約数和(自身を含む): 38265696

約数和(自身を除く): 18860961

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 1553, 1785, 2499, 4165, 4659, 7765, 10871, 12495, 23295, 26401, 32613, 54355, 76097, 79203, 132005, 163065, 184807, 228291, 380485, 396015, 554421, 924035, 1141455, 1293649, 2772105, 3880947, 6468245, 19404735]

約数ペア:

[(1, 19404735), (3, 6468245), (5, 3880947), (7, 2772105), (15, 1293649), (17, 1141455), (21, 924035), (35, 554421), (49, 396015), (51, 380485), (85, 228291), (105, 184807), (119, 163065), (147, 132005), (245, 79203), (255, 76097), (357, 54355), (595, 32613), (735, 26401), (833, 23295), (1553, 12495), (1785, 10871), (2499, 7765), (4165, 4659)]