21536220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 63201600

約数和(自身を除く): 41665380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 89, 109, 111, 148, 178, 185, 218, 222, 267, 327, 356, 370, 436, 444, 445, 534, 545, 555, 654, 740, 890, 1068, 1090, 1110, 1308, 1335, 1635, 1780, 2180, 2220, 2670, 3270, 3293, 4033, 5340, 6540, 6586, 8066, 9701, 9879, 12099, 13172, 16132, 16465, 19402, 19758, 20165, 24198, 29103, 32930, 38804, 39516, 40330, 48396, 48505, 49395, 58206, 60495, 65860, 80660, 97010, 98790, 116412, 120990, 145515, 194020, 197580, 241980, 291030, 358937, 582060, 717874, 1076811, 1435748, 1794685, 2153622, 3589370, 4307244, 5384055, 7178740, 10768110, 21536220]

約数ペア:

[(1, 21536220), (2, 10768110), (3, 7178740), (4, 5384055), (5, 4307244), (6, 3589370), (10, 2153622), (12, 1794685), (15, 1435748), (20, 1076811), (30, 717874), (37, 582060), (60, 358937), (74, 291030), (89, 241980), (109, 197580), (111, 194020), (148, 145515), (178, 120990), (185, 116412), (218, 98790), (222, 97010), (267, 80660), (327, 65860), (356, 60495), (370, 58206), (436, 49395), (444, 48505), (445, 48396), (534, 40330), (545, 39516), (555, 38804), (654, 32930), (740, 29103), (890, 24198), (1068, 20165), (1090, 19758), (1110, 19402), (1308, 16465), (1335, 16132), (1635, 13172), (1780, 12099), (2180, 9879), (2220, 9701), (2670, 8066), (3270, 6586), (3293, 6540), (4033, 5340)]