21670964

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 44782080

約数和(自身を除く): 23111116

約数列:

[1, 2, 4, 7, 14, 28, 79, 97, 101, 158, 194, 202, 316, 388, 404, 553, 679, 707, 1106, 1358, 1414, 2212, 2716, 2828, 7663, 7979, 9797, 15326, 15958, 19594, 30652, 31916, 39188, 53641, 55853, 68579, 107282, 111706, 137158, 214564, 223412, 274316, 773963, 1547926, 3095852, 5417741, 10835482, 21670964]

約数ペア:

[(1, 21670964), (2, 10835482), (4, 5417741), (7, 3095852), (14, 1547926), (28, 773963), (79, 274316), (97, 223412), (101, 214564), (158, 137158), (194, 111706), (202, 107282), (316, 68579), (388, 55853), (404, 53641), (553, 39188), (679, 31916), (707, 30652), (1106, 19594), (1358, 15958), (1414, 15326), (2212, 9797), (2716, 7979), (2828, 7663)]