19881456

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 61067520

約数和(自身を除く): 41186064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 79, 84, 98, 107, 112, 147, 158, 168, 196, 214, 237, 294, 316, 321, 336, 392, 428, 474, 553, 588, 632, 642, 749, 784, 856, 948, 1106, 1176, 1264, 1284, 1498, 1659, 1712, 1896, 2212, 2247, 2352, 2568, 2996, 3318, 3792, 3871, 4424, 4494, 5136, 5243, 5992, 6636, 7742, 8453, 8848, 8988, 10486, 11613, 11984, 13272, 15484, 15729, 16906, 17976, 20972, 23226, 25359, 26544, 30968, 31458, 33812, 35952, 41944, 46452, 50718, 59171, 61936, 62916, 67624, 83888, 92904, 101436, 118342, 125832, 135248, 177513, 185808, 202872, 236684, 251664, 355026, 405744, 414197, 473368, 710052, 828394, 946736, 1242591, 1420104, 1656788, 2485182, 2840208, 3313576, 4970364, 6627152, 9940728, 19881456]

約数ペア:

[(1, 19881456), (2, 9940728), (3, 6627152), (4, 4970364), (6, 3313576), (7, 2840208), (8, 2485182), (12, 1656788), (14, 1420104), (16, 1242591), (21, 946736), (24, 828394), (28, 710052), (42, 473368), (48, 414197), (49, 405744), (56, 355026), (79, 251664), (84, 236684), (98, 202872), (107, 185808), (112, 177513), (147, 135248), (158, 125832), (168, 118342), (196, 101436), (214, 92904), (237, 83888), (294, 67624), (316, 62916), (321, 61936), (336, 59171), (392, 50718), (428, 46452), (474, 41944), (553, 35952), (588, 33812), (632, 31458), (642, 30968), (749, 26544), (784, 25359), (856, 23226), (948, 20972), (1106, 17976), (1176, 16906), (1264, 15729), (1284, 15484), (1498, 13272), (1659, 11984), (1712, 11613), (1896, 10486), (2212, 8988), (2247, 8848), (2352, 8453), (2568, 7742), (2996, 6636), (3318, 5992), (3792, 5243), (3871, 5136), (4424, 4494)]