21174840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:597

約数の個数: 96

約数和(自身を含む): 69498000

約数和(自身を除く): 48323160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 360, 393, 449, 524, 655, 786, 898, 1048, 1179, 1310, 1347, 1572, 1796, 1965, 2245, 2358, 2620, 2694, 3144, 3592, 3930, 4041, 4490, 4716, 5240, 5388, 5895, 6735, 7860, 8082, 8980, 9432, 10776, 11790, 13470, 15720, 16164, 17960, 20205, 23580, 26940, 32328, 40410, 47160, 53880, 58819, 80820, 117638, 161640, 176457, 235276, 294095, 352914, 470552, 529371, 588190, 705828, 882285, 1058742, 1176380, 1411656, 1764570, 2117484, 2352760, 2646855, 3529140, 4234968, 5293710, 7058280, 10587420, 21174840]

約数ペア:

[(1, 21174840), (2, 10587420), (3, 7058280), (4, 5293710), (5, 4234968), (6, 3529140), (8, 2646855), (9, 2352760), (10, 2117484), (12, 1764570), (15, 1411656), (18, 1176380), (20, 1058742), (24, 882285), (30, 705828), (36, 588190), (40, 529371), (45, 470552), (60, 352914), (72, 294095), (90, 235276), (120, 176457), (131, 161640), (180, 117638), (262, 80820), (360, 58819), (393, 53880), (449, 47160), (524, 40410), (655, 32328), (786, 26940), (898, 23580), (1048, 20205), (1179, 17960), (1310, 16164), (1347, 15720), (1572, 13470), (1796, 11790), (1965, 10776), (2245, 9432), (2358, 8980), (2620, 8082), (2694, 7860), (3144, 6735), (3592, 5895), (3930, 5388), (4041, 5240), (4490, 4716)]