21286770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 53968896

約数和(自身を除く): 32682126

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 47, 62, 93, 94, 141, 155, 186, 235, 282, 310, 465, 470, 487, 705, 930, 974, 1410, 1457, 1461, 2435, 2914, 2922, 4371, 4870, 7285, 7305, 8742, 14570, 14610, 15097, 21855, 22889, 30194, 43710, 45291, 45778, 68667, 75485, 90582, 114445, 137334, 150970, 226455, 228890, 343335, 452910, 686670, 709559, 1419118, 2128677, 3547795, 4257354, 7095590, 10643385, 21286770]

約数ペア:

[(1, 21286770), (2, 10643385), (3, 7095590), (5, 4257354), (6, 3547795), (10, 2128677), (15, 1419118), (30, 709559), (31, 686670), (47, 452910), (62, 343335), (93, 228890), (94, 226455), (141, 150970), (155, 137334), (186, 114445), (235, 90582), (282, 75485), (310, 68667), (465, 45778), (470, 45291), (487, 43710), (705, 30194), (930, 22889), (974, 21855), (1410, 15097), (1457, 14610), (1461, 14570), (2435, 8742), (2914, 7305), (2922, 7285), (4371, 4870)]