21465796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 42815808

約数和(自身を除く): 21350012

約数列:

[1, 2, 4, 11, 22, 41, 44, 73, 82, 146, 163, 164, 292, 326, 451, 652, 803, 902, 1606, 1793, 1804, 2993, 3212, 3586, 5986, 6683, 7172, 11899, 11972, 13366, 23798, 26732, 32923, 47596, 65846, 73513, 130889, 131692, 147026, 261778, 294052, 487859, 523556, 975718, 1951436, 5366449, 10732898, 21465796]

約数ペア:

[(1, 21465796), (2, 10732898), (4, 5366449), (11, 1951436), (22, 975718), (41, 523556), (44, 487859), (73, 294052), (82, 261778), (146, 147026), (163, 131692), (164, 130889), (292, 73513), (326, 65846), (451, 47596), (652, 32923), (803, 26732), (902, 23798), (1606, 13366), (1793, 11972), (1804, 11899), (2993, 7172), (3212, 6683), (3586, 5986)]