21103440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87931}}^1$

素因数の和:87947

約数の個数: 40

約数和(自身を含む): 65421408

約数和(自身を除く): 44317968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87931, 175862, 263793, 351724, 439655, 527586, 703448, 879310, 1055172, 1318965, 1406896, 1758620, 2110344, 2637930, 3517240, 4220688, 5275860, 7034480, 10551720, 21103440]

約数ペア:

[(1, 21103440), (2, 10551720), (3, 7034480), (4, 5275860), (5, 4220688), (6, 3517240), (8, 2637930), (10, 2110344), (12, 1758620), (15, 1406896), (16, 1318965), (20, 1055172), (24, 879310), (30, 703448), (40, 527586), (48, 439655), (60, 351724), (80, 263793), (120, 175862), (240, 87931)]