18943984962

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{271879}}^1$

素因数の和:271980

約数の個数: 72

約数和(自身を含む): 48351139200

約数和(自身を除く): 29407154238

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 79, 98, 126, 147, 158, 237, 294, 441, 474, 553, 711, 882, 1106, 1422, 1659, 3318, 3871, 4977, 7742, 9954, 11613, 23226, 34839, 69678, 271879, 543758, 815637, 1631274, 1903153, 2446911, 3806306, 4893822, 5709459, 11418918, 13322071, 17128377, 21478441, 26644142, 34256754, 39966213, 42956882, 64435323, 79932426, 119898639, 128870646, 150349087, 193305969, 239797278, 300698174, 386611938, 451047261, 902094522, 1052443609, 1353141783, 2104887218, 2706283566, 3157330827, 6314661654, 9471992481, 18943984962]

約数ペア:

[(1, 18943984962), (2, 9471992481), (3, 6314661654), (6, 3157330827), (7, 2706283566), (9, 2104887218), (14, 1353141783), (18, 1052443609), (21, 902094522), (42, 451047261), (49, 386611938), (63, 300698174), (79, 239797278), (98, 193305969), (126, 150349087), (147, 128870646), (158, 119898639), (237, 79932426), (294, 64435323), (441, 42956882), (474, 39966213), (553, 34256754), (711, 26644142), (882, 21478441), (1106, 17128377), (1422, 13322071), (1659, 11418918), (3318, 5709459), (3871, 4893822), (4977, 3806306), (7742, 2446911), (9954, 1903153), (11613, 1631274), (23226, 815637), (34839, 543758), (69678, 271879)]