281232021

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 450090240

約数和(自身を除く): 168858219

約数列:

[1, 3, 7, 21, 49, 61, 79, 147, 183, 237, 397, 427, 553, 1191, 1281, 1659, 2779, 2989, 3871, 4819, 8337, 8967, 11613, 14457, 19453, 24217, 31363, 33733, 58359, 72651, 94089, 101199, 169519, 219541, 236131, 508557, 658623, 708393, 1186633, 1536787, 1913143, 3559899, 4610361, 5739429, 13392001, 40176003, 93744007, 281232021]

約数ペア:

[(1, 281232021), (3, 93744007), (7, 40176003), (21, 13392001), (49, 5739429), (61, 4610361), (79, 3559899), (147, 1913143), (183, 1536787), (237, 1186633), (397, 708393), (427, 658623), (553, 508557), (1191, 236131), (1281, 219541), (1659, 169519), (2779, 101199), (2989, 94089), (3871, 72651), (4819, 58359), (8337, 33733), (8967, 31363), (11613, 24217), (14457, 19453)]