21034065.000000000

素因数分解:

$2^5\times 3^2\times {\mathrm{89}}^1\times {\mathrm{5581}}^1$

素因数の和:5686

約数の個数: 72

約数和(自身を含む): 411449220

約数和(自身を除く): 268397028

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 89, 96, 144, 178, 267, 288, 356, 534, 712, 801, 1068, 1424, 1602, 2136, 2848, 3204, 4272, 5581, 6408, 8544, 11162, 12816, 16743, 22324, 25632, 33486, 44648, 50229, 66972, 89296, 100458, 133944, 178592, 200916, 267888, 401832, 496709, 535776, 803664, 993418, 1490127, 1607328, 1986836, 2980254, 3973672, 4470381, 5960508, 7947344, 8940762, 11921016, 15894688, 17881524, 23842032, 35763048, 47684064, 71526096, 143052192]

約数ペア:

[(1, 143052192), (2, 71526096), (3, 47684064), (4, 35763048), (6, 23842032), (8, 17881524), (9, 15894688), (12, 11921016), (16, 8940762), (18, 7947344), (24, 5960508), (32, 4470381), (36, 3973672), (48, 2980254), (72, 1986836), (89, 1607328), (96, 1490127), (144, 993418), (178, 803664), (267, 535776), (288, 496709), (356, 401832), (534, 267888), (712, 200916), (801, 178592), (1068, 133944), (1424, 100458), (1602, 89296), (2136, 66972), (2848, 50229), (3204, 44648), (4272, 33486), (5581, 25632), (6408, 22324), (8544, 16743), (11162, 12816)]