20976606

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1399}}^1$

素因数の和:1438

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 35042994

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 49, 51, 63, 98, 102, 119, 126, 147, 153, 238, 294, 306, 357, 441, 714, 833, 882, 1071, 1399, 1666, 2142, 2499, 2798, 4197, 4998, 7497, 8394, 9793, 12591, 14994, 19586, 23783, 25182, 29379, 47566, 58758, 68551, 71349, 88137, 137102, 142698, 166481, 176274, 205653, 214047, 332962, 411306, 428094, 499443, 616959, 998886, 1165367, 1233918, 1498329, 2330734, 2996658, 3496101, 6992202, 10488303, 20976606]

約数ペア:

[(1, 20976606), (2, 10488303), (3, 6992202), (6, 3496101), (7, 2996658), (9, 2330734), (14, 1498329), (17, 1233918), (18, 1165367), (21, 998886), (34, 616959), (42, 499443), (49, 428094), (51, 411306), (63, 332962), (98, 214047), (102, 205653), (119, 176274), (126, 166481), (147, 142698), (153, 137102), (238, 88137), (294, 71349), (306, 68551), (357, 58758), (441, 47566), (714, 29379), (833, 25182), (882, 23783), (1071, 19586), (1399, 14994), (1666, 12591), (2142, 9793), (2499, 8394), (2798, 7497), (4197, 4998)]