21366260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{953}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 48081600

約数和(自身を除く): 26715340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 590, 953, 1121, 1180, 1906, 2242, 3812, 4484, 4765, 5605, 9530, 11210, 18107, 19060, 22420, 36214, 56227, 72428, 90535, 112454, 181070, 224908, 281135, 362140, 562270, 1068313, 1124540, 2136626, 4273252, 5341565, 10683130, 21366260]

約数ペア:

[(1, 21366260), (2, 10683130), (4, 5341565), (5, 4273252), (10, 2136626), (19, 1124540), (20, 1068313), (38, 562270), (59, 362140), (76, 281135), (95, 224908), (118, 181070), (190, 112454), (236, 90535), (295, 72428), (380, 56227), (590, 36214), (953, 22420), (1121, 19060), (1180, 18107), (1906, 11210), (2242, 9530), (3812, 5605), (4484, 4765)]