26980215

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 44750016

約数和(自身を除く): 17769801

約数列:

[1, 3, 5, 15, 37, 111, 173, 185, 281, 519, 555, 843, 865, 1405, 2595, 4215, 6401, 10397, 19203, 31191, 32005, 48613, 51985, 96015, 145839, 155955, 243065, 729195, 1798681, 5396043, 8993405, 26980215]

約数ペア:

[(1, 26980215), (3, 8993405), (5, 5396043), (15, 1798681), (37, 729195), (111, 243065), (173, 155955), (185, 145839), (281, 96015), (519, 51985), (555, 48613), (843, 32005), (865, 31191), (1405, 19203), (2595, 10397), (4215, 6401)]