21906544

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6551}}^1$

素因数の和:6589

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 26840336

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6551, 13102, 26204, 52408, 72061, 104816, 124469, 144122, 248938, 288244, 497876, 576488, 995752, 1152976, 1369159, 1991504, 2738318, 5476636, 10953272, 21906544]

約数ペア:

[(1, 21906544), (2, 10953272), (4, 5476636), (8, 2738318), (11, 1991504), (16, 1369159), (19, 1152976), (22, 995752), (38, 576488), (44, 497876), (76, 288244), (88, 248938), (152, 144122), (176, 124469), (209, 104816), (304, 72061), (418, 52408), (836, 26204), (1672, 13102), (3344, 6551)]