19039904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1297

約数の個数: 48

約数和(自身を含む): 41492808

約数和(自身を除く): 22452904

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 74, 104, 148, 208, 296, 416, 481, 592, 962, 1184, 1237, 1924, 2474, 3848, 4948, 7696, 9896, 15392, 16081, 19792, 32162, 39584, 45769, 64324, 91538, 128648, 183076, 257296, 366152, 514592, 594997, 732304, 1189994, 1464608, 2379988, 4759976, 9519952, 19039904]

約数ペア:

[(1, 19039904), (2, 9519952), (4, 4759976), (8, 2379988), (13, 1464608), (16, 1189994), (26, 732304), (32, 594997), (37, 514592), (52, 366152), (74, 257296), (104, 183076), (148, 128648), (208, 91538), (296, 64324), (416, 45769), (481, 39584), (592, 32162), (962, 19792), (1184, 16081), (1237, 15392), (1924, 9896), (2474, 7696), (3848, 4948)]