21565590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 53887680

約数和(自身を除く): 32322090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 89, 123, 178, 197, 205, 246, 267, 394, 410, 445, 534, 591, 615, 890, 985, 1182, 1230, 1335, 1970, 2670, 2955, 3649, 5910, 7298, 8077, 10947, 16154, 17533, 18245, 21894, 24231, 35066, 36490, 40385, 48462, 52599, 54735, 80770, 87665, 105198, 109470, 121155, 175330, 242310, 262995, 525990, 718853, 1437706, 2156559, 3594265, 4313118, 7188530, 10782795, 21565590]

約数ペア:

[(1, 21565590), (2, 10782795), (3, 7188530), (5, 4313118), (6, 3594265), (10, 2156559), (15, 1437706), (30, 718853), (41, 525990), (82, 262995), (89, 242310), (123, 175330), (178, 121155), (197, 109470), (205, 105198), (246, 87665), (267, 80770), (394, 54735), (410, 52599), (445, 48462), (534, 40385), (591, 36490), (615, 35066), (890, 24231), (985, 21894), (1182, 18245), (1230, 17533), (1335, 16154), (1970, 10947), (2670, 8077), (2955, 7298), (3649, 5910)]