21318608

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3049}}^1$

素因数の和:3099

約数の個数: 40

約数和(自身を含む): 45384000

約数和(自身を除く): 24065392

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 3049, 3496, 6098, 6992, 12196, 24392, 48784, 57931, 70127, 115862, 140254, 231724, 280508, 463448, 561016, 926896, 1122032, 1332413, 2664826, 5329652, 10659304, 21318608]

約数ペア:

[(1, 21318608), (2, 10659304), (4, 5329652), (8, 2664826), (16, 1332413), (19, 1122032), (23, 926896), (38, 561016), (46, 463448), (76, 280508), (92, 231724), (152, 140254), (184, 115862), (304, 70127), (368, 57931), (437, 48784), (874, 24392), (1748, 12196), (3049, 6992), (3496, 6098)]