21965944

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 55866240

約数和(自身を除く): 33900296

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 169, 182, 211, 286, 308, 338, 364, 422, 572, 616, 676, 728, 844, 1001, 1144, 1183, 1352, 1477, 1688, 1859, 2002, 2321, 2366, 2743, 2954, 3718, 4004, 4642, 4732, 5486, 5908, 7436, 8008, 9284, 9464, 10972, 11816, 13013, 14872, 16247, 18568, 19201, 21944, 26026, 30173, 32494, 35659, 38402, 52052, 60346, 64988, 71318, 76804, 104104, 120692, 129976, 142636, 153608, 211211, 241384, 249613, 285272, 392249, 422422, 499226, 784498, 844844, 998452, 1568996, 1689688, 1996904, 2745743, 3137992, 5491486, 10982972, 21965944]

約数ペア:

[(1, 21965944), (2, 10982972), (4, 5491486), (7, 3137992), (8, 2745743), (11, 1996904), (13, 1689688), (14, 1568996), (22, 998452), (26, 844844), (28, 784498), (44, 499226), (52, 422422), (56, 392249), (77, 285272), (88, 249613), (91, 241384), (104, 211211), (143, 153608), (154, 142636), (169, 129976), (182, 120692), (211, 104104), (286, 76804), (308, 71318), (338, 64988), (364, 60346), (422, 52052), (572, 38402), (616, 35659), (676, 32494), (728, 30173), (844, 26026), (1001, 21944), (1144, 19201), (1183, 18568), (1352, 16247), (1477, 14872), (1688, 13013), (1859, 11816), (2002, 10972), (2321, 9464), (2366, 9284), (2743, 8008), (2954, 7436), (3718, 5908), (4004, 5486), (4642, 4732)]