21519144

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{17581}}^1$

素因数の和:17610

約数の個数: 48

約数和(自身を含む): 61712820

約数和(自身を除く): 40193676

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 306, 408, 612, 1224, 17581, 35162, 52743, 70324, 105486, 140648, 158229, 210972, 298877, 316458, 421944, 597754, 632916, 896631, 1195508, 1265832, 1793262, 2391016, 2689893, 3586524, 5379786, 7173048, 10759572, 21519144]

約数ペア:

[(1, 21519144), (2, 10759572), (3, 7173048), (4, 5379786), (6, 3586524), (8, 2689893), (9, 2391016), (12, 1793262), (17, 1265832), (18, 1195508), (24, 896631), (34, 632916), (36, 597754), (51, 421944), (68, 316458), (72, 298877), (102, 210972), (136, 158229), (153, 140648), (204, 105486), (306, 70324), (408, 52743), (612, 35162), (1224, 17581)]