21777964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 21686996

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 131, 139, 262, 278, 299, 524, 556, 598, 1196, 1703, 1807, 3013, 3197, 3406, 3614, 6026, 6394, 6812, 7228, 12052, 12788, 18209, 36418, 39169, 41561, 72836, 78338, 83122, 156676, 166244, 236717, 418807, 473434, 837614, 946868, 1675228, 5444491, 10888982, 21777964]

約数ペア:

[(1, 21777964), (2, 10888982), (4, 5444491), (13, 1675228), (23, 946868), (26, 837614), (46, 473434), (52, 418807), (92, 236717), (131, 166244), (139, 156676), (262, 83122), (278, 78338), (299, 72836), (524, 41561), (556, 39169), (598, 36418), (1196, 18209), (1703, 12788), (1807, 12052), (3013, 7228), (3197, 6812), (3406, 6394), (3614, 6026)]