20833904

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 51038400

約数和(自身を除く): 30204496

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 41, 52, 56, 82, 91, 104, 112, 164, 182, 208, 287, 328, 349, 364, 533, 574, 656, 698, 728, 1066, 1148, 1396, 1456, 2132, 2296, 2443, 2792, 3731, 4264, 4537, 4592, 4886, 5584, 7462, 8528, 9074, 9772, 14309, 14924, 18148, 19544, 28618, 29848, 31759, 36296, 39088, 57236, 59696, 63518, 72592, 100163, 114472, 127036, 186017, 200326, 228944, 254072, 372034, 400652, 508144, 744068, 801304, 1302119, 1488136, 1602608, 2604238, 2976272, 5208476, 10416952, 20833904]

約数ペア:

[(1, 20833904), (2, 10416952), (4, 5208476), (7, 2976272), (8, 2604238), (13, 1602608), (14, 1488136), (16, 1302119), (26, 801304), (28, 744068), (41, 508144), (52, 400652), (56, 372034), (82, 254072), (91, 228944), (104, 200326), (112, 186017), (164, 127036), (182, 114472), (208, 100163), (287, 72592), (328, 63518), (349, 59696), (364, 57236), (533, 39088), (574, 36296), (656, 31759), (698, 29848), (728, 28618), (1066, 19544), (1148, 18148), (1396, 14924), (1456, 14309), (2132, 9772), (2296, 9074), (2443, 8528), (2792, 7462), (3731, 5584), (4264, 4886), (4537, 4592)]