21365696

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 84

約数和(自身を含む): 48646080

約数和(自身を除く): 27280384

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 89, 121, 124, 176, 178, 242, 248, 341, 352, 356, 484, 496, 682, 704, 712, 968, 979, 992, 1364, 1424, 1936, 1958, 1984, 2728, 2759, 2848, 3751, 3872, 3916, 5456, 5518, 5696, 7502, 7744, 7832, 10769, 10912, 11036, 15004, 15664, 21538, 21824, 22072, 30008, 30349, 31328, 43076, 44144, 60016, 60698, 62656, 86152, 88288, 120032, 121396, 172304, 176576, 240064, 242792, 333839, 344608, 485584, 667678, 689216, 971168, 1335356, 1942336, 2670712, 5341424, 10682848, 21365696]

約数ペア:

[(1, 21365696), (2, 10682848), (4, 5341424), (8, 2670712), (11, 1942336), (16, 1335356), (22, 971168), (31, 689216), (32, 667678), (44, 485584), (62, 344608), (64, 333839), (88, 242792), (89, 240064), (121, 176576), (124, 172304), (176, 121396), (178, 120032), (242, 88288), (248, 86152), (341, 62656), (352, 60698), (356, 60016), (484, 44144), (496, 43076), (682, 31328), (704, 30349), (712, 30008), (968, 22072), (979, 21824), (992, 21538), (1364, 15664), (1424, 15004), (1936, 11036), (1958, 10912), (1984, 10769), (2728, 7832), (2759, 7744), (2848, 7502), (3751, 5696), (3872, 5518), (3916, 5456)]