21621352144

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{547}}^1\times {\mathrm{2539}}^1$

素因数の和:3240

約数の個数: 80

約数和(自身を含む): 48327462400

約数和(自身を除く): 26706110256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 547, 556, 973, 1094, 1112, 1946, 2188, 2224, 2539, 3829, 3892, 4376, 5078, 7658, 7784, 8752, 10156, 15316, 15568, 17773, 20312, 30632, 35546, 40624, 61264, 71092, 76033, 142184, 152066, 284368, 304132, 352921, 532231, 608264, 705842, 1064462, 1216528, 1388833, 1411684, 2128924, 2470447, 2777666, 2823368, 4257848, 4940894, 5555332, 5646736, 8515696, 9721831, 9881788, 11110664, 19443662, 19763576, 22221328, 38887324, 39527152, 77774648, 155549296, 193047787, 386095574, 772191148, 1351334509, 1544382296, 2702669018, 3088764592, 5405338036, 10810676072, 21621352144]

約数ペア:

[(1, 21621352144), (2, 10810676072), (4, 5405338036), (7, 3088764592), (8, 2702669018), (14, 1544382296), (16, 1351334509), (28, 772191148), (56, 386095574), (112, 193047787), (139, 155549296), (278, 77774648), (547, 39527152), (556, 38887324), (973, 22221328), (1094, 19763576), (1112, 19443662), (1946, 11110664), (2188, 9881788), (2224, 9721831), (2539, 8515696), (3829, 5646736), (3892, 5555332), (4376, 4940894), (5078, 4257848), (7658, 2823368), (7784, 2777666), (8752, 2470447), (10156, 2128924), (15316, 1411684), (15568, 1388833), (17773, 1216528), (20312, 1064462), (30632, 705842), (35546, 608264), (40624, 532231), (61264, 352921), (71092, 304132), (76033, 284368), (142184, 152066)]