21987431728

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{281}}^1\times {\mathrm{58921}}^1$

素因数の和:59293

約数の個数: 40

約数和(自身を含む): 43268074416

約数和(自身を除く): 21280642688

約数列:

[1, 2, 4, 8, 16, 83, 166, 281, 332, 562, 664, 1124, 1328, 2248, 4496, 23323, 46646, 58921, 93292, 117842, 186584, 235684, 373168, 471368, 942736, 4890443, 9780886, 16556801, 19561772, 33113602, 39123544, 66227204, 78247088, 132454408, 264908816, 1374214483, 2748428966, 5496857932, 10993715864, 21987431728]

約数ペア:

[(1, 21987431728), (2, 10993715864), (4, 5496857932), (8, 2748428966), (16, 1374214483), (83, 264908816), (166, 132454408), (281, 78247088), (332, 66227204), (562, 39123544), (664, 33113602), (1124, 19561772), (1328, 16556801), (2248, 9780886), (4496, 4890443), (23323, 942736), (46646, 471368), (58921, 373168), (93292, 235684), (117842, 186584)]