291270987

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1051}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 496274688

約数和(自身を除く): 205003701

約数列:

[1, 3, 7, 9, 21, 53, 63, 83, 159, 249, 371, 477, 581, 747, 1051, 1113, 1743, 3153, 3339, 4399, 5229, 7357, 9459, 13197, 22071, 30793, 39591, 55703, 66213, 87233, 92379, 167109, 261699, 277137, 389921, 501327, 610631, 785097, 1169763, 1831893, 3509289, 4623349, 5495679, 13870047, 32363443, 41610141, 97090329, 291270987]

約数ペア:

[(1, 291270987), (3, 97090329), (7, 41610141), (9, 32363443), (21, 13870047), (53, 5495679), (63, 4623349), (83, 3509289), (159, 1831893), (249, 1169763), (371, 785097), (477, 610631), (581, 501327), (747, 389921), (1051, 277137), (1113, 261699), (1743, 167109), (3153, 92379), (3339, 87233), (4399, 66213), (5229, 55703), (7357, 39591), (9459, 30793), (13197, 22071)]