20953506

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 29734494

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 109, 138, 161, 199, 218, 322, 327, 398, 483, 597, 654, 763, 966, 1194, 1393, 1526, 2289, 2507, 2786, 4179, 4577, 4578, 5014, 7521, 8358, 9154, 13731, 15042, 17549, 21691, 27462, 32039, 35098, 43382, 52647, 64078, 65073, 96117, 105294, 130146, 151837, 192234, 303674, 455511, 498893, 911022, 997786, 1496679, 2993358, 3492251, 6984502, 10476753, 20953506]

約数ペア:

[(1, 20953506), (2, 10476753), (3, 6984502), (6, 3492251), (7, 2993358), (14, 1496679), (21, 997786), (23, 911022), (42, 498893), (46, 455511), (69, 303674), (109, 192234), (138, 151837), (161, 130146), (199, 105294), (218, 96117), (322, 65073), (327, 64078), (398, 52647), (483, 43382), (597, 35098), (654, 32039), (763, 27462), (966, 21691), (1194, 17549), (1393, 15042), (1526, 13731), (2289, 9154), (2507, 8358), (2786, 7521), (4179, 5014), (4577, 4578)]