21284484

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 57953280

約数和(自身を除く): 36668796

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 43, 52, 57, 76, 78, 86, 114, 129, 156, 167, 172, 228, 247, 258, 334, 494, 501, 516, 559, 668, 741, 817, 988, 1002, 1118, 1482, 1634, 1677, 2004, 2171, 2236, 2451, 2964, 3173, 3268, 3354, 4342, 4902, 6346, 6513, 6708, 7181, 8684, 9519, 9804, 10621, 12692, 13026, 14362, 19038, 21242, 21543, 26052, 28724, 31863, 38076, 41249, 42484, 43086, 63726, 82498, 86172, 93353, 123747, 127452, 136439, 164996, 186706, 247494, 272878, 280059, 373412, 409317, 494988, 545756, 560118, 818634, 1120236, 1637268, 1773707, 3547414, 5321121, 7094828, 10642242, 21284484]

約数ペア:

[(1, 21284484), (2, 10642242), (3, 7094828), (4, 5321121), (6, 3547414), (12, 1773707), (13, 1637268), (19, 1120236), (26, 818634), (38, 560118), (39, 545756), (43, 494988), (52, 409317), (57, 373412), (76, 280059), (78, 272878), (86, 247494), (114, 186706), (129, 164996), (156, 136439), (167, 127452), (172, 123747), (228, 93353), (247, 86172), (258, 82498), (334, 63726), (494, 43086), (501, 42484), (516, 41249), (559, 38076), (668, 31863), (741, 28724), (817, 26052), (988, 21543), (1002, 21242), (1118, 19038), (1482, 14362), (1634, 13026), (1677, 12692), (2004, 10621), (2171, 9804), (2236, 9519), (2451, 8684), (2964, 7181), (3173, 6708), (3268, 6513), (3354, 6346), (4342, 4902)]