19929236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^2$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 38356668

約数和(自身を除く): 18427432

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 89, 148, 178, 356, 629, 1258, 1513, 2516, 3026, 3293, 6052, 6586, 7921, 13172, 15842, 31684, 55981, 111962, 134657, 223924, 269314, 293077, 538628, 586154, 1172308, 4982309, 9964618, 19929236]

約数ペア:

[(1, 19929236), (2, 9964618), (4, 4982309), (17, 1172308), (34, 586154), (37, 538628), (68, 293077), (74, 269314), (89, 223924), (148, 134657), (178, 111962), (356, 55981), (629, 31684), (1258, 15842), (1513, 13172), (2516, 7921), (3026, 6586), (3293, 6052)]