21323780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1063}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 26939260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 1003, 1063, 1180, 2006, 2126, 4012, 4252, 5015, 5315, 10030, 10630, 18071, 20060, 21260, 36142, 62717, 72284, 90355, 125434, 180710, 250868, 313585, 361420, 627170, 1066189, 1254340, 2132378, 4264756, 5330945, 10661890, 21323780]

約数ペア:

[(1, 21323780), (2, 10661890), (4, 5330945), (5, 4264756), (10, 2132378), (17, 1254340), (20, 1066189), (34, 627170), (59, 361420), (68, 313585), (85, 250868), (118, 180710), (170, 125434), (236, 90355), (295, 72284), (340, 62717), (590, 36142), (1003, 21260), (1063, 20060), (1180, 18071), (2006, 10630), (2126, 10030), (4012, 5315), (4252, 5015)]