21698760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 70963200

約数和(自身を除く): 49264440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 307, 310, 372, 380, 456, 465, 570, 589, 614, 620, 744, 760, 921, 930, 1140, 1178, 1228, 1240, 1535, 1767, 1842, 1860, 2280, 2356, 2456, 2945, 3070, 3534, 3684, 3720, 4605, 4712, 5833, 5890, 6140, 7068, 7368, 8835, 9210, 9517, 11666, 11780, 12280, 14136, 17499, 17670, 18420, 19034, 23332, 23560, 28551, 29165, 34998, 35340, 36840, 38068, 46664, 47585, 57102, 58330, 69996, 70680, 76136, 87495, 95170, 114204, 116660, 139992, 142755, 174990, 180823, 190340, 228408, 233320, 285510, 349980, 361646, 380680, 542469, 571020, 699960, 723292, 904115, 1084938, 1142040, 1446584, 1808230, 2169876, 2712345, 3616460, 4339752, 5424690, 7232920, 10849380, 21698760]

約数ペア:

[(1, 21698760), (2, 10849380), (3, 7232920), (4, 5424690), (5, 4339752), (6, 3616460), (8, 2712345), (10, 2169876), (12, 1808230), (15, 1446584), (19, 1142040), (20, 1084938), (24, 904115), (30, 723292), (31, 699960), (38, 571020), (40, 542469), (57, 380680), (60, 361646), (62, 349980), (76, 285510), (93, 233320), (95, 228408), (114, 190340), (120, 180823), (124, 174990), (152, 142755), (155, 139992), (186, 116660), (190, 114204), (228, 95170), (248, 87495), (285, 76136), (307, 70680), (310, 69996), (372, 58330), (380, 57102), (456, 47585), (465, 46664), (570, 38068), (589, 36840), (614, 35340), (620, 34998), (744, 29165), (760, 28551), (921, 23560), (930, 23332), (1140, 19034), (1178, 18420), (1228, 17670), (1240, 17499), (1535, 14136), (1767, 12280), (1842, 11780), (1860, 11666), (2280, 9517), (2356, 9210), (2456, 8835), (2945, 7368), (3070, 7068), (3534, 6140), (3684, 5890), (3720, 5833), (4605, 4712)]