21064164

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 54966240

約数和(自身を除く): 33902076

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 89, 121, 132, 163, 178, 242, 267, 326, 356, 363, 484, 489, 534, 652, 726, 978, 979, 1068, 1452, 1793, 1956, 1958, 2937, 3586, 3916, 5379, 5874, 7172, 10758, 10769, 11748, 14507, 19723, 21516, 21538, 29014, 32307, 39446, 43076, 43521, 58028, 59169, 64614, 78892, 87042, 118338, 129228, 159577, 174084, 236676, 319154, 478731, 638308, 957462, 1755347, 1914924, 3510694, 5266041, 7021388, 10532082, 21064164]

約数ペア:

[(1, 21064164), (2, 10532082), (3, 7021388), (4, 5266041), (6, 3510694), (11, 1914924), (12, 1755347), (22, 957462), (33, 638308), (44, 478731), (66, 319154), (89, 236676), (121, 174084), (132, 159577), (163, 129228), (178, 118338), (242, 87042), (267, 78892), (326, 64614), (356, 59169), (363, 58028), (484, 43521), (489, 43076), (534, 39446), (652, 32307), (726, 29014), (978, 21538), (979, 21516), (1068, 19723), (1452, 14507), (1793, 11748), (1956, 10769), (1958, 10758), (2937, 7172), (3586, 5874), (3916, 5379)]