21195230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 24994210

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 53, 58, 70, 106, 145, 197, 203, 265, 290, 371, 394, 406, 530, 742, 985, 1015, 1379, 1537, 1855, 1970, 2030, 2758, 3074, 3710, 5713, 6895, 7685, 10441, 10759, 11426, 13790, 15370, 20882, 21518, 28565, 39991, 52205, 53795, 57130, 73087, 79982, 104410, 107590, 146174, 199955, 302789, 365435, 399910, 605578, 730870, 1513945, 2119523, 3027890, 4239046, 10597615, 21195230]

約数ペア:

[(1, 21195230), (2, 10597615), (5, 4239046), (7, 3027890), (10, 2119523), (14, 1513945), (29, 730870), (35, 605578), (53, 399910), (58, 365435), (70, 302789), (106, 199955), (145, 146174), (197, 107590), (203, 104410), (265, 79982), (290, 73087), (371, 57130), (394, 53795), (406, 52205), (530, 39991), (742, 28565), (985, 21518), (1015, 20882), (1379, 15370), (1537, 13790), (1855, 11426), (1970, 10759), (2030, 10441), (2758, 7685), (3074, 6895), (3710, 5713)]