21999720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9649}}^1$

素因数の和:9682

約数の個数: 64

約数和(自身を含む): 69480000

約数和(自身を除く): 47480280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9649, 19298, 28947, 38596, 48245, 57894, 77192, 96490, 115788, 144735, 183331, 192980, 231576, 289470, 366662, 385960, 549993, 578940, 733324, 916655, 1099986, 1157880, 1466648, 1833310, 2199972, 2749965, 3666620, 4399944, 5499930, 7333240, 10999860, 21999720]

約数ペア:

[(1, 21999720), (2, 10999860), (3, 7333240), (4, 5499930), (5, 4399944), (6, 3666620), (8, 2749965), (10, 2199972), (12, 1833310), (15, 1466648), (19, 1157880), (20, 1099986), (24, 916655), (30, 733324), (38, 578940), (40, 549993), (57, 385960), (60, 366662), (76, 289470), (95, 231576), (114, 192980), (120, 183331), (152, 144735), (190, 115788), (228, 96490), (285, 77192), (380, 57894), (456, 48245), (570, 38596), (760, 28947), (1140, 19298), (2280, 9649)]