9780221907

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1\times {\mathrm{883}}^1$

素因数の和:1377

約数の個数: 64

約数和(自身を含む): 15657408000

約数和(自身を除く): 5877186093

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 409, 459, 531, 883, 1003, 1227, 1593, 2649, 3009, 3681, 6953, 7947, 9027, 11043, 15011, 20859, 23841, 24131, 27081, 45033, 52097, 62577, 72393, 135099, 156291, 187731, 217179, 361147, 405297, 410227, 468873, 651537, 885649, 1083441, 1230681, 1406619, 2656947, 3250323, 3692043, 6139499, 7970841, 9750969, 11076129, 18418497, 21307673, 23912523, 55255491, 63923019, 165766473, 191769057, 362230441, 575307171, 1086691323, 3260073969, 9780221907]

約数ペア:

[(1, 9780221907), (3, 3260073969), (9, 1086691323), (17, 575307171), (27, 362230441), (51, 191769057), (59, 165766473), (153, 63923019), (177, 55255491), (409, 23912523), (459, 21307673), (531, 18418497), (883, 11076129), (1003, 9750969), (1227, 7970841), (1593, 6139499), (2649, 3692043), (3009, 3250323), (3681, 2656947), (6953, 1406619), (7947, 1230681), (9027, 1083441), (11043, 885649), (15011, 651537), (20859, 468873), (23841, 410227), (24131, 405297), (27081, 361147), (45033, 217179), (52097, 187731), (62577, 156291), (72393, 135099)]