19398496

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 72

約数和(自身を含む): 43994664

約数和(自身を除く): 24596168

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 169, 208, 211, 221, 272, 338, 416, 422, 442, 544, 676, 844, 884, 1352, 1688, 1768, 2704, 2743, 2873, 3376, 3536, 3587, 5408, 5486, 5746, 6752, 7072, 7174, 10972, 11492, 14348, 21944, 22984, 28696, 35659, 43888, 45968, 46631, 57392, 71318, 87776, 91936, 93262, 114784, 142636, 186524, 285272, 373048, 570544, 606203, 746096, 1141088, 1212406, 1492192, 2424812, 4849624, 9699248, 19398496]

約数ペア:

[(1, 19398496), (2, 9699248), (4, 4849624), (8, 2424812), (13, 1492192), (16, 1212406), (17, 1141088), (26, 746096), (32, 606203), (34, 570544), (52, 373048), (68, 285272), (104, 186524), (136, 142636), (169, 114784), (208, 93262), (211, 91936), (221, 87776), (272, 71318), (338, 57392), (416, 46631), (422, 45968), (442, 43888), (544, 35659), (676, 28696), (844, 22984), (884, 21944), (1352, 14348), (1688, 11492), (1768, 10972), (2704, 7174), (2743, 7072), (2873, 6752), (3376, 5746), (3536, 5486), (3587, 5408)]