21581910

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:643

約数の個数: 128

約数和(自身を含む): 69350400

約数和(自身を除く): 47768490

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 601, 630, 665, 798, 855, 945, 1026, 1197, 1202, 1330, 1710, 1803, 1890, 1995, 2394, 2565, 3005, 3591, 3606, 3990, 4207, 5130, 5409, 5985, 6010, 7182, 8414, 9015, 10818, 11419, 11970, 12621, 16227, 17955, 18030, 21035, 22838, 25242, 27045, 32454, 34257, 35910, 37863, 42070, 54090, 57095, 63105, 68514, 75726, 79933, 81135, 102771, 113589, 114190, 126210, 159866, 162270, 171285, 189315, 205542, 227178, 239799, 308313, 342570, 378630, 399665, 479598, 513855, 567945, 616626, 719397, 799330, 1027710, 1135890, 1198995, 1438794, 1541565, 2158191, 2397990, 3083130, 3596985, 4316382, 7193970, 10790955, 21581910]

約数ペア:

[(1, 21581910), (2, 10790955), (3, 7193970), (5, 4316382), (6, 3596985), (7, 3083130), (9, 2397990), (10, 2158191), (14, 1541565), (15, 1438794), (18, 1198995), (19, 1135890), (21, 1027710), (27, 799330), (30, 719397), (35, 616626), (38, 567945), (42, 513855), (45, 479598), (54, 399665), (57, 378630), (63, 342570), (70, 308313), (90, 239799), (95, 227178), (105, 205542), (114, 189315), (126, 171285), (133, 162270), (135, 159866), (171, 126210), (189, 114190), (190, 113589), (210, 102771), (266, 81135), (270, 79933), (285, 75726), (315, 68514), (342, 63105), (378, 57095), (399, 54090), (513, 42070), (570, 37863), (601, 35910), (630, 34257), (665, 32454), (798, 27045), (855, 25242), (945, 22838), (1026, 21035), (1197, 18030), (1202, 17955), (1330, 16227), (1710, 12621), (1803, 11970), (1890, 11419), (1995, 10818), (2394, 9015), (2565, 8414), (3005, 7182), (3591, 6010), (3606, 5985), (3990, 5409), (4207, 5130)]