21439890

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:215

約数の個数: 112

約数和(自身を含む): 61618968

約数和(自身を除く): 40179078

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 173, 243, 255, 270, 306, 346, 405, 459, 486, 510, 519, 729, 765, 810, 865, 918, 1038, 1215, 1377, 1458, 1530, 1557, 1730, 2295, 2430, 2595, 2754, 2941, 3114, 3645, 4131, 4590, 4671, 5190, 5882, 6885, 7290, 7785, 8262, 8823, 9342, 12393, 13770, 14013, 14705, 15570, 17646, 20655, 23355, 24786, 26469, 28026, 29410, 41310, 42039, 44115, 46710, 52938, 61965, 70065, 79407, 84078, 88230, 123930, 126117, 132345, 140130, 158814, 210195, 238221, 252234, 264690, 397035, 420390, 476442, 630585, 714663, 794070, 1191105, 1261170, 1429326, 2143989, 2382210, 3573315, 4287978, 7146630, 10719945, 21439890]

約数ペア:

[(1, 21439890), (2, 10719945), (3, 7146630), (5, 4287978), (6, 3573315), (9, 2382210), (10, 2143989), (15, 1429326), (17, 1261170), (18, 1191105), (27, 794070), (30, 714663), (34, 630585), (45, 476442), (51, 420390), (54, 397035), (81, 264690), (85, 252234), (90, 238221), (102, 210195), (135, 158814), (153, 140130), (162, 132345), (170, 126117), (173, 123930), (243, 88230), (255, 84078), (270, 79407), (306, 70065), (346, 61965), (405, 52938), (459, 46710), (486, 44115), (510, 42039), (519, 41310), (729, 29410), (765, 28026), (810, 26469), (865, 24786), (918, 23355), (1038, 20655), (1215, 17646), (1377, 15570), (1458, 14705), (1530, 14013), (1557, 13770), (1730, 12393), (2295, 9342), (2430, 8823), (2595, 8262), (2754, 7785), (2941, 7290), (3114, 6885), (3645, 5882), (4131, 5190), (4590, 4671)]