20851933438

素因数分解:

$2^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{389}}^1\times {\mathrm{3671}}^1$

素因数の和:4225

約数の個数: 48

約数和(自身を含む): 36732852000

約数和(自身を除く): 15880918562

約数列:

[1, 2, 7, 14, 49, 98, 149, 298, 389, 778, 1043, 2086, 2723, 3671, 5446, 7301, 7342, 14602, 19061, 25697, 38122, 51394, 57961, 115922, 179879, 359758, 405727, 546979, 811454, 1093958, 1428019, 2840089, 2856038, 3828853, 5680178, 7657706, 9996133, 19992266, 26801971, 53603942, 69972931, 139945862, 212774831, 425549662, 1489423817, 2978847634, 10425966719, 20851933438]

約数ペア:

[(1, 20851933438), (2, 10425966719), (7, 2978847634), (14, 1489423817), (49, 425549662), (98, 212774831), (149, 139945862), (298, 69972931), (389, 53603942), (778, 26801971), (1043, 19992266), (2086, 9996133), (2723, 7657706), (3671, 5680178), (5446, 3828853), (7301, 2856038), (7342, 2840089), (14602, 1428019), (19061, 1093958), (25697, 811454), (38122, 546979), (51394, 405727), (57961, 359758), (115922, 179879)]