21668436

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 58531200

約数和(自身を除く): 36862764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 79, 114, 158, 171, 228, 237, 316, 342, 401, 474, 684, 711, 802, 948, 1203, 1422, 1501, 1604, 2406, 2844, 3002, 3609, 4503, 4812, 6004, 7218, 7619, 9006, 13509, 14436, 15238, 18012, 22857, 27018, 30476, 31679, 45714, 54036, 63358, 68571, 91428, 95037, 126716, 137142, 190074, 274284, 285111, 380148, 570222, 601901, 1140444, 1203802, 1805703, 2407604, 3611406, 5417109, 7222812, 10834218, 21668436]

約数ペア:

[(1, 21668436), (2, 10834218), (3, 7222812), (4, 5417109), (6, 3611406), (9, 2407604), (12, 1805703), (18, 1203802), (19, 1140444), (36, 601901), (38, 570222), (57, 380148), (76, 285111), (79, 274284), (114, 190074), (158, 137142), (171, 126716), (228, 95037), (237, 91428), (316, 68571), (342, 63358), (401, 54036), (474, 45714), (684, 31679), (711, 30476), (802, 27018), (948, 22857), (1203, 18012), (1422, 15238), (1501, 14436), (1604, 13509), (2406, 9006), (2844, 7619), (3002, 7218), (3609, 6004), (4503, 4812)]