21830536

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 50964480

約数和(自身を除く): 29133944

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 157, 182, 191, 314, 364, 382, 628, 728, 764, 1099, 1256, 1337, 1528, 2041, 2198, 2483, 2674, 4082, 4396, 4966, 5348, 8164, 8792, 9932, 10696, 14287, 16328, 17381, 19864, 28574, 29987, 34762, 57148, 59974, 69524, 114296, 119948, 139048, 209909, 239896, 389831, 419818, 779662, 839636, 1559324, 1679272, 2728817, 3118648, 5457634, 10915268, 21830536]

約数ペア:

[(1, 21830536), (2, 10915268), (4, 5457634), (7, 3118648), (8, 2728817), (13, 1679272), (14, 1559324), (26, 839636), (28, 779662), (52, 419818), (56, 389831), (91, 239896), (104, 209909), (157, 139048), (182, 119948), (191, 114296), (314, 69524), (364, 59974), (382, 57148), (628, 34762), (728, 29987), (764, 28574), (1099, 19864), (1256, 17381), (1337, 16328), (1528, 14287), (2041, 10696), (2198, 9932), (2483, 8792), (2674, 8164), (4082, 5348), (4396, 4966)]