21915390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1417

約数の個数: 64

約数和(自身を含む): 60917760

約数和(自身を除く): 39002370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 79, 105, 158, 210, 237, 395, 474, 553, 790, 1106, 1185, 1321, 1659, 2370, 2642, 2765, 3318, 3963, 5530, 6605, 7926, 8295, 9247, 13210, 16590, 18494, 19815, 27741, 39630, 46235, 55482, 92470, 104359, 138705, 208718, 277410, 313077, 521795, 626154, 730513, 1043590, 1461026, 1565385, 2191539, 3130770, 3652565, 4383078, 7305130, 10957695, 21915390]

約数ペア:

[(1, 21915390), (2, 10957695), (3, 7305130), (5, 4383078), (6, 3652565), (7, 3130770), (10, 2191539), (14, 1565385), (15, 1461026), (21, 1043590), (30, 730513), (35, 626154), (42, 521795), (70, 313077), (79, 277410), (105, 208718), (158, 138705), (210, 104359), (237, 92470), (395, 55482), (474, 46235), (553, 39630), (790, 27741), (1106, 19815), (1185, 18494), (1321, 16590), (1659, 13210), (2370, 9247), (2642, 8295), (2765, 7926), (3318, 6605), (3963, 5530)]