21357512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7829}}^1$

素因数の和:7877

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 23743288

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7829, 15658, 31316, 62632, 86119, 172238, 242699, 344476, 485398, 688952, 970796, 1941592, 2669689, 5339378, 10678756, 21357512]

約数ペア:

[(1, 21357512), (2, 10678756), (4, 5339378), (8, 2669689), (11, 1941592), (22, 970796), (31, 688952), (44, 485398), (62, 344476), (88, 242699), (124, 172238), (248, 86119), (341, 62632), (682, 31316), (1364, 15658), (2728, 7829)]