19527248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{349}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 41013000

約数和(自身を除く): 21485752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 269, 349, 538, 698, 1076, 1396, 2152, 2792, 3497, 4304, 4537, 5584, 6994, 9074, 13988, 18148, 27976, 36296, 55952, 72592, 93881, 187762, 375524, 751048, 1220453, 1502096, 2440906, 4881812, 9763624, 19527248]

約数ペア:

[(1, 19527248), (2, 9763624), (4, 4881812), (8, 2440906), (13, 1502096), (16, 1220453), (26, 751048), (52, 375524), (104, 187762), (208, 93881), (269, 72592), (349, 55952), (538, 36296), (698, 27976), (1076, 18148), (1396, 13988), (2152, 9074), (2792, 6994), (3497, 5584), (4304, 4537)]