21218040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3467}}^1$

素因数の和:3501

約数の個数: 96

約数和(自身を含む): 73036080

約数和(自身を除く): 51818040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3467, 6120, 6934, 10401, 13868, 17335, 20802, 27736, 31203, 34670, 41604, 52005, 58939, 62406, 69340, 83208, 104010, 117878, 124812, 138680, 156015, 176817, 208020, 235756, 249624, 294695, 312030, 353634, 416040, 471512, 530451, 589390, 624060, 707268, 884085, 1060902, 1178780, 1248120, 1414536, 1768170, 2121804, 2357560, 2652255, 3536340, 4243608, 5304510, 7072680, 10609020, 21218040]

約数ペア:

[(1, 21218040), (2, 10609020), (3, 7072680), (4, 5304510), (5, 4243608), (6, 3536340), (8, 2652255), (9, 2357560), (10, 2121804), (12, 1768170), (15, 1414536), (17, 1248120), (18, 1178780), (20, 1060902), (24, 884085), (30, 707268), (34, 624060), (36, 589390), (40, 530451), (45, 471512), (51, 416040), (60, 353634), (68, 312030), (72, 294695), (85, 249624), (90, 235756), (102, 208020), (120, 176817), (136, 156015), (153, 138680), (170, 124812), (180, 117878), (204, 104010), (255, 83208), (306, 69340), (340, 62406), (360, 58939), (408, 52005), (510, 41604), (612, 34670), (680, 31203), (765, 27736), (1020, 20802), (1224, 17335), (1530, 13868), (2040, 10401), (3060, 6934), (3467, 6120)]