21419048

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 27828952

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 149, 151, 238, 298, 302, 476, 596, 604, 952, 1043, 1057, 1192, 1208, 2086, 2114, 2533, 2567, 4172, 4228, 5066, 5134, 8344, 8456, 10132, 10268, 17731, 17969, 20264, 20536, 22499, 35462, 35938, 44998, 70924, 71876, 89996, 141848, 143752, 157493, 179992, 314986, 382483, 629972, 764966, 1259944, 1529932, 2677381, 3059864, 5354762, 10709524, 21419048]

約数ペア:

[(1, 21419048), (2, 10709524), (4, 5354762), (7, 3059864), (8, 2677381), (14, 1529932), (17, 1259944), (28, 764966), (34, 629972), (56, 382483), (68, 314986), (119, 179992), (136, 157493), (149, 143752), (151, 141848), (238, 89996), (298, 71876), (302, 70924), (476, 44998), (596, 35938), (604, 35462), (952, 22499), (1043, 20536), (1057, 20264), (1192, 17969), (1208, 17731), (2086, 10268), (2114, 10132), (2533, 8456), (2567, 8344), (4172, 5134), (4228, 5066)]