21277532

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 40830720

約数和(自身を除く): 19553188

約数列:

[1, 2, 4, 29, 31, 58, 61, 62, 97, 116, 122, 124, 194, 244, 388, 899, 1769, 1798, 1891, 2813, 3007, 3538, 3596, 3782, 5626, 5917, 6014, 7076, 7564, 11252, 11834, 12028, 23668, 54839, 87203, 109678, 171593, 174406, 183427, 219356, 343186, 348812, 366854, 686372, 733708, 5319383, 10638766, 21277532]

約数ペア:

[(1, 21277532), (2, 10638766), (4, 5319383), (29, 733708), (31, 686372), (58, 366854), (61, 348812), (62, 343186), (97, 219356), (116, 183427), (122, 174406), (124, 171593), (194, 109678), (244, 87203), (388, 54839), (899, 23668), (1769, 12028), (1798, 11834), (1891, 11252), (2813, 7564), (3007, 7076), (3538, 6014), (3596, 5917), (3782, 5626)]